Everything should seem like a piece of cake when you're first learning it. Why don't you want this basic information to be easy for students? I agree complex particle physics is hard. If a student understands the basics and likes it, they'll go on later to study the more complex details--maybe they'll become a particle physicist! But if they hate it when they first learn it because it's so impossible to understand, I guarantee they'll *never* learn more.
You're sincerely the best when it comes to explaining, you should definitely replace my teacher. Thank you, we all really appreciate it. Keep doing what you're doing. Glad to have found your channel.
Hey everyone, I'm here to help. If you have any questions or just want to learn more, click on the link in the description above. It'll take you to a page where you can ask me questions.
PLEASE START MAKING THIS CONTENTS AGAIN!❤️ When this video came out I was merely a baby! LOVE FROM BANGLADESH 🇧🇩 I now read in 11 th grade and I love chemistry.It is wonderful to know this awesome things living thousands of kilometres away from you.
thank you much-you are very good -slow and detailed. congratulations to you. very understanding and easy to see through what you demonstrated about neutrons. very good.
this was amazing , I've been reading the same information in my text for hours now and was not able to comprehend nearly as i did when i watched this video , i understood everything the first time looking at it , thank you so much for making it this easy ! looking forward for more videos :)
Oh WOW i had no idea about this! The drawings made it so clear! My chemistry teacher sees that I know so much and she gives me more advanced work. Tyler, the amount of times I watch you is 90% and the amount of times I listen and see my chemistry teacher in a year is 10%. That shows that you are more better than my teacher.
But I really have a doubt How can Alpha particles kick out neutrons from the 'Be' or 'B' or 'Li'? How can neutrons kick out protons from Wax? First of all Why did Neutrons come out?
I know it's kinda late to answer but I will try to give answer as short and easy as possible. Well in late 1900 scientist were curious about what are the forces and how they interact with each other. With loads of excellent contribution of various scientist it was determined that in our universe 4 force are present i.e 1. Strong attraction force(nuclear force) , 2. Gravitational force, 3. Electromagnetic forces and last but not least is 4. Weak nuclear force. As per you question alpha particles kicked out of neutrons is because of weak nuclear force. Let me explain every element consistent of proton and neutrons, since all positive charge always repel each other so atom nucleus can't stable right??..No here comes the neutrons to save, you can think of neutrons as charge less but it also acts as cushion so that protons can stay together without rupturing the atoms nucleus. As the heavy the element goes so does the number of protons increases as well as neutrons too. Now comes the trick, there are sometimes when so much positive charge is condense into small space(atom nucleus) that it tend to become unstable due to repulsive force of proton. Since all things in the universe follows law of conservation of energy, to stabilize itself atom nucleus realease energy in form of radioactive (alpha particles, beta, or gamma). Fun fact take example of Uranium. We know Uranium have 2 major isotopes U238 and U-235. U-238 is relatively much stable than latter as it have more neutrons i.e more cushion and glue (stability), where as U-235 have 3 neutrons less and since less cushion and more positive-positive repulsive force which leads to its higher instability and high radioactive. Hope this answers your questions
@@zakcullen6124 Just to be sure, you want to know how scientist determine that given radioactive decay is by which form i.e alpha particle decay, gamma or beta? Is that your question?
If you want to know whether decaying is from alpha particle or beta. I think it will be better if you search Wilson Cloud Chamber on TH-cam, I think you will find answer of your question. It will be easier for you to watch rather than reading description analogue of mine.
@Joseph Park Naah not really there is difference for nuclear explosion you need to have sustainable instantaneous release of all energy. I will advise you to go and check out "Critical Nuclear Mass" on TH-cam or Google. You will come your answers. As far as my interest is concern, yes I have master in molecular biology and we all the time uses small radioactive isotopes to carry out study experiment. If you really want to know how molecular biologist use radioactive isotopes then I will suggest you watch experiment "Hershey-Chase Bacteriophage Experiment" as it is basic of radioactive experiment carryout inside the cell body Moreover python is great for data analysis and for its predictive method machine learning, so we try to use this to effectively collect data of amino acid and other chemical signal and try to make a predictive it's movement through python libraries.
Can anybody answer this : Why does bery/boron foil send out neutrons ? why couldnt it send protons as both as positive it should repel and proton should come out why doesnt it ?Why does proton come out of Paraffin wax ?Why was it chosen?
Excellent video! Thank you for your clear explanation that really helped to give an understanding of the underlying mystery these scientists like Chadwick were trying to answer and how they answered it.
Thank you sir an incredible video A question... Why protons would not get shot out of lithium boron or beryllium... Why nutrons??? Because i think +,+ repel so alpha particles and protons repel and that should displace protons from beryllium lithium or boron And also i am curious to ask that what happens to that matter(parafin) after getting its protons out.... I mean its mass or shape or state of matter or something that might haappen to it ???
Pragyan Pandey protons cancelling out means its losing its paraffin wax identity (??!) cuz proton is what that is the most fundamental particle of an atom and if it gets discharged, the wax perhaps turns into something else rather than wax. Here electrons were not shot out therefore, there won't be filling up of any K shell and turn into noble gas or something. Besides, wax is a hydrocarbon?
That's a smart question, even I wonder, how could he become so sure that it was neutron shooting out, not proton cuz proton-proton repulses and there's a very chance that if protons are shot out then it's gonna have the same action done by neutron kicking out the protons. And the second question of yours, since wax was losing its protons I think it's gonna turn into some other element or at least so like it as proton gives an atom its identity. But again, since it's a complex hydrocarbon, I can't be so sure about it and perhaps, it converts into some other hydrocarbon.
Too good and easy approachable lecture delivered by you.............. i am not even english speaker but despite it was too easy for me to handle your lecture as compared to others i found on youtube..... thumbs up....(y)
Actually reading the book of chang, I remain a little confused, but after watching your videos, I become completely clear. Thanks for your nice videos.
To get this such a beautiful content is not less than a boon.... Love u a lot sir❤️❤️ I am Indian and there is a channel who made a video on this topic and instead of taking the credit he told all the audience that all credit goes to U nd I didn't expected that this content could be so much beautiful.... Totally awesome sir Their Channel name:- EduPoint Love you a lot sir💕💕
I don't understand why only protons are coming out from paraffin as neutron can heat other neutron or electron and can kick out those from wax. 2nd That fast moving neutrons of Boron can even come out through empty space of atoms of wax.
After seeing thing we come to know that... What you need is a mentor like this to think that what was actually happened to do such discoveries..... Love from India 🇮🇳🇮🇳
@@krishvanshknu6889 paraffin shows tracks/scratches if something massive hits it. The release of p+ was a surprise at first. the assumption was that the unknown particles would embed into the paraffin. the resulting push told us of the equivalent force being transmitted through the paraffin. apparently the energy released by the alpha collision released neutrons of very high KE, which was sufficient to eject the p+
Thank you so much you saved me The education of pharmacy in Algeria was in French until this year. I was struggling to find resources to study in English ❤😊
Don't forget to say that a Peruvian physicist Antúnez de Mayolo proposed the existence of the neutron eight years before its discovery. Btw, thanks for your awesome videos.
Hey, Tyler. Just a question. Why would the neutrons strike out the protons of the paraffin? I mean the probability that a randomly striking neutron would strike such a small nucleus is tiny. Thanks in advance and also for teaching all this stuff.
just thought i'd say..Sir James Chadwick is my 2 or 3 time great grandfather on my mom's side...makes sense...my brother wanted to be an astrophysicist....pretty interesting stuff..
If protons are then shot from the wax, then the number of protons within the atoms of the wax is reduced. Does this mean it becomes a completely different element?
This is class 11 chemistry Now I am 15yrs old This video was uploaded 10yrs before form now that means when I was 5. I was thinking about this how old this video was but good quality and better explanation I had never seen
+Divneet k It's pretty easy, u keep a magnet or an electrical plates to check whether the rays bend (Charged particles repel or attract)....neutron rays didn't bend....
they tested it similarly with magnets and electric field......the neutrons being neutral were unaffected...thus the scientists concluded that neutrons were neutral..
Saksham Sharma......none of the particles would bang into the magnet....if u kept a magnetic field around the movement of an electron ,proton or neutron...the protons would deflect with a force(Lorentz force)..and the direction of it would be along the direction which the vector (vector's arrow sign) indicates...it can be given by the formula (F=Q *(V * B)).....(where F,V and B are vectors..)....the same would take place with an electron....and the neutron would show no change in its path..it would move without any deflection.................
when they passed the rays of neutrons between 2 metal plates ,one with a positive charge and another with a negative charge , the ray didn't deflect towards any of the metal plates.
How did they know that it wasn't the Alpha-particles passing through the Boron/Lithium film and hitting the wax? How did they know it had to be particles released from the first film?
+Mac Stringer The Alpha particles are positively charged and the radiation coming out from the boron/lithium film had no charge, therefore it couldn't be the alpha particles.
Two things If the particles that were coming from Beryllium did not have a charge how was Chadwik so sure of something coming out?? Was there a sound or some other thing that he was observing?? Geiger counter may be... Second, If photons with no mass can eject an electron ( in photo electric effect) why cant a gama ray do the same with proton? Was there something else.... If a tiny particle hits a massive particle, the tiny particle will be reflected back.... But then how was Chadwick sure of no reflection without observing it? But yes, when a ball strikes to another ball of same mass, it transfers nearly all momentum to the other. Then on weighing Hydrogen and Helium.. This is probably based on the fact that 1 liter of H2 and He will have same number of molecules...but how was that verified without weighing....??
when the alpha particle pass through b, be or li, they also pass through the magnetic field and nothing happen so he concluded that ray must have no charge
about the gamma ray and proton thingy, because electrons are leptons too and have close to no mass, they can be ejected by photons? Whereas protons were massive and had to be hit by something of similar mass. Besides, they probably thought waves couldn't hit particles since the hypothesis of earlier experiments discovering subatomic particles all assumed a particle was hitting another particle, not a wave (probably thought of as a force) pushing a particle. Just my educated guess :P
He didn't had to check if the gama rays are reflected or not coz that made no sense coz what they wanted to find was that what's that thing which is pushing the protons of wax not what's the thing that is reflecting.
Neutron does not prevent the nucleus from falling appart. Actually neutrons make some atoms unstable, for exempel isotops of carbon. Carbon 12 is stable, add two more neutrons carbon 14 unstable. It is however true that same charge repell, but not in the atomic nucleus. If protons come close enough, the stronge nuclear force takes over and keep them togheter. In large atoms like uranium, there is a lot of neutrons, and the neutrons increase the distance between the protons, therefore are large atoms unstable.
matematik och naturvetenskap My teacher also told me about the strong nuclear force but I wondef how can there be both attraction and repulsion between things like between the protons in the nucleus , the coulombic force and the strong nuclear force. How does that make sense?
It is all about distance. The forces works in different scale, for example velcro tape is working well for short distance, but not if they are just a little bit appart. Here is another interesting thing to think about why does the negative electron dont´t fall into the positive nucleus...,
matematik och naturvetenskap Yeah that is because of the high velocity of the electron and the curvature of the path or nucleus , that's why it doesn't fall . That's only according to the classical things . Also Bohr has said in his model that it can't fall down because it can't just lose energy as long as it stays in an orbit . And today with the Quantum mechanics we know that electron is not just circling round the nucleus as we had thought . But still I didn't get that Strong nuclear force thing that how could a repulsive force change into an attractive one.
Yeah, true. But on second thoughts, why do atoms of elements have a trend of increasing difference between neutron proton numbers (or if you think the trend is not obvious enough, why do elements have an increasing number of neutrons?) ? My take on this is that since strong nuclear force work on a larger scale than the repulsion between protons (+ +), the larger amounts of protons need larger amounts of neutrons to provide space in between to ensure strong nuclear force takes charge and thereby "prevent the nucleus from falling apart". However, strong force can only do so much and as the number of particles in the nucleus gets bigger and bigger the atom becomes more and more unstable. Still, I'm still in high school so take my thoughts with a pinch of salt.
Absolutely helpful explanation , but if i may ask , why are only the protons getting shot out of the atoms , and why only of paraffin wax , any possible explanation would be very helpful !..
One more thing to add is that if there are 2 electrons in K shell then it will complete it's K shell and situation will be really confusing. Other thing is that the electron has already jumped in L shell without completing it's K shell which is against the laws of Bohr's atomic theory. Therefore your diagram is wrong.
why did rutherford didn't get the neutrons based radiations when he did the gold foil experiment whereas james got that while bombarding the same alpha particles used by Rutherford over beryllium, lithium, etc. Even atoms of Gold contain the neutrons
How did Chadwick verify: 1) That the particles emitted from Beryllium, et al were negatively charged? And, 2) that the alpha particles used in step 1 weren't the same ones appearing on the other side of the paraffin?
Love from INDIA by the help of Arijit daripa sir of Edu Point on TH-cam
haa , me bhi check karne aaya tha edupoint se :)
I f him
Everything should seem like a piece of cake when you're first learning it. Why don't you want this basic information to be easy for students? I agree complex particle physics is hard. If a student understands the basics and likes it, they'll go on later to study the more complex details--maybe they'll become a particle physicist! But if they hate it when they first learn it because it's so impossible to understand, I guarantee they'll *never* learn more.
tyler why was it deemed the radiation was neutron
You are not only a teacher but also the poor students' (like us) guide and motivation.
OMG, I can learn more Chemistry and english, together, well done! Thanks!
Same with me
You're sincerely the best when it comes to explaining, you should definitely replace my teacher. Thank you, we all really appreciate it. Keep doing what you're doing. Glad to have found your channel.
I learn more in these than in school.
ikr
ikr than i need tutorials
It's because he's not boring. A lot of these teachers are boring af.
I feel it's more to do with the environment, your able to watch this at home or whenever you choose
@@ballistiklekent6541 ^ I agree
Still helpful in 2020 more than school or any teacher...❤️❤️ Thanks for being on TH-cam 😭😭
Hey everyone, I'm here to help. If you have any questions or just want to learn more, click on the link in the description above. It'll take you to a page where you can ask me questions.
PLEASE START MAKING THIS CONTENTS AGAIN!❤️
When this video came out I was merely a baby!
LOVE FROM BANGLADESH 🇧🇩
I now read in 11 th grade and I love chemistry.It is wonderful to know this awesome things living thousands of kilometres away from you.
you are the best chemistry teacher. thanks for these awesome videos.
thank you much-you are very good -slow and detailed. congratulations to you. very understanding and easy to see through what you demonstrated about neutrons. very good.
So glad that I found your channel, by seeing your hands I can say that you was totally involved in teaching the stuff.
Great tutor !
this was amazing , I've been reading the same information in my text for hours now and was not able to comprehend nearly as i did when i watched this video , i understood everything the first time looking at it , thank you so much for making it this easy ! looking forward for more videos :)
omygod i have a report of this tomorrow and u basically saved my life
lol
I am so glad I found your channel. I was lost in class but you have given me hope.
The way you teach is so easy and systematic.....all things just link together..... Best explanation!
You're the best teacher by a good margin on TH-cam.
Thanks! My textbook didn't explain it and I was curious, love your chem vids!
Please be my chem teacher I'm learning more from your videos than I have in class the past month
Oh WOW i had no idea about this! The drawings made it so clear! My chemistry teacher sees that I know so much and she gives me more advanced work. Tyler, the amount of times I watch you is 90% and the amount of times I listen and see my chemistry teacher in a year is 10%. That shows that you are more better than my teacher.
Sir plz make more videos like this plz sir ,we all miss you sir 🙏🙏🙏
thank you so much sir .... your videos help me a lot to learn chemistry. really appreciate your dedication. And I understand the concepts clearly.
I was wracking my brain over his experiment for an hour or so and you literally just cured me in 10 minutes, YOU'RE AMAZING
But I really have a doubt
How can Alpha particles kick out neutrons from the 'Be' or 'B' or 'Li'?
How can neutrons kick out protons from Wax?
First of all Why did Neutrons come out?
I know it's kinda late to answer but I will try to give answer as short and easy as possible. Well in late 1900 scientist were curious about what are the forces and how they interact with each other. With loads of excellent contribution of various scientist it was determined that in our universe 4 force are present i.e 1. Strong attraction force(nuclear force) , 2. Gravitational force, 3. Electromagnetic forces and last but not least is 4. Weak nuclear force. As per you question alpha particles kicked out of neutrons is because of weak nuclear force.
Let me explain every element consistent of proton and neutrons, since all positive charge always repel each other so atom nucleus can't stable right??..No here comes the neutrons to save, you can think of neutrons as charge less but it also acts as cushion so that protons can stay together without rupturing the atoms nucleus. As the heavy the element goes so does the number of protons increases as well as neutrons too. Now comes the trick, there are sometimes when so much positive charge is condense into small space(atom nucleus) that it tend to become unstable due to repulsive force of proton. Since all things in the universe follows law of conservation of energy, to stabilize itself atom nucleus realease energy in form of radioactive (alpha particles, beta, or gamma).
Fun fact take example of Uranium. We know Uranium have 2 major isotopes U238 and U-235. U-238 is relatively much stable than latter as it have more neutrons i.e more cushion and glue (stability), where as U-235 have 3 neutrons less and since less cushion and more positive-positive repulsive force which leads to its higher instability and high radioactive.
Hope this answers your questions
@@zakcullen6124 Just to be sure, you want to know how scientist determine that given radioactive decay is by which form i.e alpha particle decay, gamma or beta? Is that your question?
If you want to know whether decaying is from alpha particle or beta. I think it will be better if you search Wilson Cloud Chamber on TH-cam, I think you will find answer of your question. It will be easier for you to watch rather than reading description analogue of mine.
@Joseph Park Naah not really there is difference for nuclear explosion you need to have sustainable instantaneous release of all energy. I will advise you to go and check out "Critical Nuclear Mass" on TH-cam or Google. You will come your answers. As far as my interest is concern, yes I have master in molecular biology and we all the time uses small radioactive isotopes to carry out study experiment. If you really want to know how molecular biologist use radioactive isotopes then I will suggest you watch experiment "Hershey-Chase Bacteriophage Experiment" as it is basic of radioactive experiment carryout inside the cell body
Moreover python is great for data analysis and for its predictive method machine learning, so we try to use this to effectively collect data of amino acid and other chemical signal and try to make a predictive it's movement through python libraries.
@Joseph Park No. To cause a nuclear explosion you need a nuclear chain reaction above critical mass to reach explosive kinetics.
Can anybody answer this : Why does bery/boron foil send out neutrons ? why couldnt it send protons as both as positive it should repel and proton should come out why doesnt it ?Why does proton come out of Paraffin wax ?Why was it chosen?
tbh
Well I don't even understand the question now lel
Yess,, I also have these doubts but nobody is understanding my these doubts 😟😟
MR. SWÂG makes a lotta sense now as I thigh it would like ya know clash
Same doubt...
You're the reason I'm starting to find chemistry interesting! Thank you so so much
Excellent video! Thank you for your clear explanation that really helped to give an understanding of the underlying mystery these scientists like Chadwick were trying to answer and how they answered it.
Thank you sir an incredible video
A question... Why protons would not get shot out of lithium boron or beryllium... Why nutrons??? Because i think +,+ repel so alpha particles and protons repel and that should displace protons from beryllium lithium or boron
And also i am curious to ask that what happens to that matter(parafin) after getting its protons out.... I mean its mass or shape or state of matter or something that might haappen to it ???
Same questions
Helium nuclei isn't neutral, it has 2 protons and 2 neutrons and needs 2 electrons so it's doubly charged .
Neutron is neutral and 2 protons will cancel out the charge of 2 electrons.Therefore making it's K shell complete and a noble gas.
Pragyan Pandey protons cancelling out means its losing its paraffin wax identity (??!) cuz proton is what that is the most fundamental particle of an atom and if it gets discharged, the wax perhaps turns into something else rather than wax. Here electrons were not shot out therefore, there won't be filling up of any K shell and turn into noble gas or something. Besides, wax is a hydrocarbon?
That's a smart question, even I wonder, how could he become so sure that it was neutron shooting out, not proton cuz proton-proton repulses and there's a very chance that if protons are shot out then it's gonna have the same action done by neutron kicking out the protons. And the second question of yours, since wax was losing its protons I think it's gonna turn into some other element or at least so like it as proton gives an atom its identity. But again, since it's a complex hydrocarbon, I can't be so sure about it and perhaps, it converts into some other hydrocarbon.
Your explanation is perfect
Too good and easy approachable lecture delivered by you.............. i am not even english speaker but despite it was too easy for me to handle your lecture as compared to others i found on youtube..... thumbs up....(y)
Actually reading the book of chang, I remain a little confused, but after watching your videos, I become completely clear. Thanks for your nice videos.
To get this such a beautiful content is not less than a boon....
Love u a lot sir❤️❤️
I am Indian and there is a channel who made a video on this topic and instead of taking the credit he told all the audience that all credit goes to U nd I didn't expected that this content could be so much beautiful....
Totally awesome sir
Their Channel name:- EduPoint
Love you a lot sir💕💕
Me too, I have come from the link of Edupoint
These vids are soo helpful I recommend them when I hear someone needs help
Thank you so much for explaining this! You're tens times better at explaining things than my Chemistry teacher.
Brilliantly explained, helped enormously in one of my research tasks.
What a really good video! I hope that I can meet your video earlier when I was in high school !
Very well narated and good explanation!
I don't understand why only protons are coming out from paraffin as neutron can heat other neutron or electron and can kick out those from wax. 2nd That fast moving neutrons of Boron can even come out through empty space of atoms of wax.
I wish you were my Chem teacher! Thank you so much!
My best teacher ever. please make more videos, im begging of you
doing a project on James Chadwick, this helped sooo much!
~thanks
really like your videos, they r very clear to me
You need me .and also i am chem teacher.please attach ur email i am bizuneh becho
I love to watch your videoes as they are concept clearing
So glad my teacher put a link to this on the powerpoint
Loved your method of illustrating and teaching ✌🏻
thank you very much.
I use this for understanding the test of discovering the neutron.
I'm also glad to found your channel!
Absolutely genius of you to explain these concepts.... keep the good work going :)
I just wanna say I really enjoy your videos and you have a great way of explaining things keep up the good work!
After seeing thing we come to know that... What you need is a mentor like this to think that what was actually happened to do such discoveries..... Love from India 🇮🇳🇮🇳
Me too from India
No matter in which class did u read 8/9/10/+1/+2
This video is useful for all.... What a teaching sir
SALUTE U
Sir you are the best teacher in the world. I beg you to please launch a chemistry course program for JEE students
what does paraffin got in particular??...although there must be something which made chadwick to place paraffin infront of the radiation !!
in some texts, you can have light nuclei written over then, like helium's, carbon's or nitrogen's!
So paraffin is a long chain hydrocarbon which essentially is rich in hydrogens
i think bcoz parrafin cant show photoelectric emission when hited by electromagnetic waves
@@krishvanshknu6889 paraffin shows tracks/scratches if something massive hits it. The release of p+ was a surprise at first. the assumption was that the unknown particles would embed into the paraffin. the resulting push told us of the equivalent force being transmitted through the paraffin. apparently the energy released by the alpha collision released neutrons of very high KE, which was sufficient to eject the p+
@@njmullins Thanks for the reply! It helped me too.
Thank you so much you saved me
The education of pharmacy in Algeria was in French until this year. I was struggling to find resources to study in English ❤😊
Don't forget to say that a Peruvian physicist Antúnez de Mayolo proposed the existence of the neutron eight years before its discovery. Btw, thanks for your awesome videos.
Ohh you are a greattt teacher :-) Thank you so much for your time and effort !
thank you so much!! I hope schools can teach like you but they don't really teach
Thank you for your wonderful efforts I am very like your lesson and you understand
Hey, Tyler.
Just a question.
Why would the neutrons strike out the protons of the paraffin?
I mean the probability that a randomly striking neutron would strike such a small nucleus is tiny.
Thanks in advance and also for teaching all this stuff.
you are so awesome . your speech in ted was also cool and it gave a nice advisory to all science teachers
hi Sir i am Fateh Ubaid From Pk if you give a lecture on the network which is made in Solids we will Be thankfull TO you
We Love You sir !
How did scientists discover that hydrogens only had one proton and helium has two? Did they measure the magnitude of the charge? Who did that and how?
This video really helped me in understanding the concept
Thank you so much
just thought i'd say..Sir James Chadwick is my 2 or 3 time great grandfather on my mom's side...makes sense...my brother wanted to be an astrophysicist....pretty interesting stuff..
If protons are then shot from the wax, then the number of protons within the atoms of the wax is reduced. Does this mean it becomes a completely different element?
The wax is mostly carbon and hydrogen atoms. A single proton is the same as a hydrogen atom and is likely what was being released.
This is class 11 chemistry
Now I am 15yrs old This video was uploaded 10yrs before form now that means when I was 5. I was thinking about this how old this video was but good quality and better explanation I had never seen
I liked the way of explaining complex theories
Sir you are superhero for me.....
Love from India🇮🇳🇮🇳🇮🇳....
Thank you sir, now I am able to understand very well. Awesome video
excellent explanation thanks.plz show some animation also
I am telling that I am so lucky to have nice explanation by Tyler dewitt thanks tylerdewitt bro nice explanation
What made the scientists think that neutrons dont have a charge? How did they conclude that?
+Divneet k It's pretty easy, u keep a magnet or an electrical plates to check whether the rays bend (Charged particles repel or attract)....neutron rays didn't bend....
they tested it similarly with magnets and electric field......the neutrons being neutral were unaffected...thus the scientists concluded that neutrons were neutral..
Saksham Sharma......none of the particles would bang into the magnet....if u kept a magnetic field around the movement of an electron ,proton or neutron...the protons would deflect with a force(Lorentz force)..and the direction of it would be along the direction which the vector (vector's arrow sign) indicates...it can be given by the formula (F=Q *(V * B)).....(where F,V and B are vectors..)....the same would take place with an electron....and the neutron would show no change in its path..it would move without any deflection.................
no probs...bro....*brofist*
when they passed the rays of neutrons between 2 metal plates ,one with a positive charge and another with a negative charge , the ray didn't deflect towards any of the metal plates.
So perfect. I feel like I should stay home and learn from u-tube. It's a lot better.. honestly.
Great work I am from India but our teachers never teached like you
such a great lesson, expecting for more of them, thank u so much than l can tell
road to 1M subscribers! You deserve it, Kudos
He made me love chemistry ....
IDK why he speaks so confidently making me feel he has worked with the scientists and know each and everything
Why the neutrons only shoot out protons and not neutrons present in the paraffin?
Thank you sooo much!! Love your vids so clearly explained and so good🤍💕🦋💞🌙
How did they know that it wasn't the Alpha-particles passing through the Boron/Lithium film and hitting the wax? How did they know it had to be particles released from the first film?
+Mac Stringer The Alpha particles are positively charged and the radiation coming out from the boron/lithium film had no charge, therefore it couldn't be the alpha particles.
@@bellajade2438 thanks!
very nice explanation❤
Two things
If the particles that were coming from Beryllium did not have a charge how was Chadwik so sure of something coming out?? Was there a sound or some other thing that he was observing?? Geiger counter may be...
Second, If photons with no mass can eject an electron ( in photo electric effect) why cant a gama ray do the same with proton? Was there something else.... If a tiny particle hits a massive particle, the tiny particle will be reflected back.... But then how was Chadwick sure of no reflection without observing it? But yes, when a ball strikes to another ball of same mass, it transfers nearly all momentum to the other.
Then on weighing Hydrogen and Helium.. This is probably based on the fact that 1 liter of H2 and He will have same number of molecules...but how was that verified without weighing....??
Ram Krishna True!!! Please Answer This Question. I am Also Waiting
when the alpha particle pass through b, be or li, they also pass through the magnetic field and nothing happen so he concluded that ray must have no charge
about the gamma ray and proton thingy, because electrons are leptons too and have close to no mass, they can be ejected by photons? Whereas protons were massive and had to be hit by something of similar mass. Besides, they probably thought waves couldn't hit particles since the hypothesis of earlier experiments discovering subatomic particles all assumed a particle was hitting another particle, not a wave (probably thought of as a force) pushing a particle. Just my educated guess :P
He didn't had to check if the gama rays are reflected or not coz that made no sense coz what they wanted to find was that what's that thing which is pushing the protons of wax not what's the thing that is reflecting.
Why electrons can never exist in a neucleus?
Definitely worth 10 minutes thanks man
Very well explained.Thank you Tyler for enlightening hungry brains
Thanks man!
Also, I can translate these videos for you if you want!
Neutron does not prevent the nucleus from falling appart. Actually neutrons make some atoms unstable, for exempel isotops of carbon. Carbon 12 is stable, add two more neutrons carbon 14 unstable. It is however true that same charge repell, but not in the atomic nucleus. If protons come close enough, the stronge nuclear force takes over and keep them togheter. In large atoms like uranium, there is a lot of neutrons, and the neutrons increase the distance between the protons, therefore are large atoms unstable.
matematik och naturvetenskap My teacher also told me about the strong nuclear force but I wondef how can there be both attraction and repulsion between things like between the protons in the nucleus , the coulombic force and the strong nuclear force. How does that make sense?
It is all about distance. The forces works in different scale, for example velcro tape is working well for short distance, but not if they are just a little bit appart.
Here is another interesting thing to think about why does the negative electron dont´t fall into the positive nucleus...,
matematik och naturvetenskap Yeah that is because of the high velocity of the electron and the curvature of the path or nucleus , that's why it doesn't fall . That's only according to the classical things . Also Bohr has said in his model that it can't fall down because it can't just lose energy as long as it stays in an orbit .
And today with the Quantum mechanics we know that electron is not just circling round the nucleus as we had thought .
But still I didn't get that Strong nuclear force thing that how could a repulsive force change into an attractive one.
Yeah, true. But on second thoughts, why do atoms of elements have a trend of increasing difference between neutron proton numbers (or if you think the trend is not obvious enough, why do elements have an increasing number of neutrons?) ? My take on this is that since strong nuclear force work on a larger scale than the repulsion between protons (+ +), the larger amounts of protons need larger amounts of neutrons to provide space in between to ensure strong nuclear force takes charge and thereby "prevent the nucleus from falling apart". However, strong force can only do so much and as the number of particles in the nucleus gets bigger and bigger the atom becomes more and more unstable. Still, I'm still in high school so take my thoughts with a pinch of salt.
Absolutely helpful explanation , but if i may ask , why are only the protons getting shot out of the atoms , and why only of paraffin wax , any possible explanation would be very helpful !..
I wish u were my chemistry teacher. u are the best chemistry teacher I have ever learned from. Thanks
thank you so much for your video, the way you teach is the best
One more thing to add is that if there are 2 electrons in K shell then it will complete it's K shell and situation will be really confusing. Other thing is that the electron has already jumped in L shell without completing it's K shell which is against the laws of Bohr's atomic theory. Therefore your diagram is wrong.
very nice. please make video on discovery of protons
Best amongst others ! You are the man who made me interested in chemistry ,which I thought be the most booring subject .Hats of to you!Man......
please make the next video parts of this series
Thank you so much you make this lesson sooooo esay for me .
You teach better than anything or anyone
Keep it up 👍
found the legendary teacher on this planet... .
hat's off to you sir
stay happy...
how they measure the mass if atom
how they measure the mass if atom
why did rutherford didn't get the neutrons based radiations when he did the gold foil experiment whereas james got that while bombarding the same alpha particles used by Rutherford over beryllium, lithium, etc. Even atoms of Gold contain the neutrons
How did Chadwick verify:
1) That the particles emitted from Beryllium, et al were negatively charged? And,
2) that the alpha particles used in step 1 weren't the same ones appearing on the other side of the paraffin?
1. place the system between electrical plates a la the cathode ray experiment. the neutrons are undeflected
2. alpha particles are 2+ charged
Very cool demo, but I'm curious why neutrons don't also come shooting out of the parafin wax?
Very comprehensive lecture
u r a legend :) very interesting ways to explain critical things