Atomic radius trends on periodic table | Periodic table | Chemistry | Khan Academy
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- เผยแพร่เมื่อ 12 มิ.ย. 2014
- How atomic radius is defined, and trends across a period and down a group. Created by Jay.
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The first four minutes were just getting me more confused. Thanks for the explanation though.
well his sound is comparable with seismic waves
this was discussed in our class for 1 and a half hrs, didn't understand most of it. This video nailed it! already understood everything in just abt 10 minutes! thank you 😁
I wish they would just teach us like:
-if you go right and up in the PT, radios gets smaller
-if you go left and down, it gets larger.
Well thank you sir lol
This comment should be pinned
You just helped me get my homework question right😂
i was quiet stunned after seeing khan in the voice of britisher
I am so confused. I wish I could just understand this stuff. :(((((
keep on working you will get there
this is far better than byjus ..........
explicação muito boa... obrigado senhor professor, ajudou bastante
after 1 year of taking chem now is when i understand this topic, thank youuu
Thank you so much for this video!, it helped me understand it much more :)
thank you so much for this! i have a quiz on atomic trends and didn't understand at all but now im ready!
Michelle Restrepo how was it?
Michelle Restrepo how ur quiz was??
Bad
If I were attracted to some kind of intelligence through a mans voice and thoughts, it would be the one in this video. Yup.
+Marissa Shannon exactly my thoughts. Sal Khan has an amazing voice.
First 3 minutes were helpful in explaining radius isn’t calculated the same way it is with objects regularly measured by everyday people with measuring tape. THANK YOU
Thank you Khan that really helped!
My HS teacher lacked passion and it was contagious. ty Khan. Better late than never. tytyty
Love your teaching style! very entertaining! :D Learning loads from you. You are an awesome teacher.
+Rachel Barrett Indeed his teaching skills are awsm!
Get Lost! Did you see his English videos because he teaches you how to spell awesome correct.
Thank you very much this saved me 💖
Great job!
Well, each point tought to its basics...and that makes the difference....
Sal: But if you go to krypton...
Super man: *cries
Thanks Khan academy
much helpful
thank you!!!!!
thank you
Excellent video
thanks
Thanks sir
I am watching from India
Awesome teaching
Can anyone explain how it is that two atoms that are not bonded and two that do share a covalent bond could have the same distance between their nuclei? Thanks in advance!
why atomic size of gallium is slightly smaller than that of aluminum.
i just threw up...
iceicebuddy Yes somebody understands
super
your a very nice teacher???
Why wouldn't the Coulomb attraction be strong for hydrogen? Why is it only stronger for Helium? Is it the increase in protons only? I thought the electrons canceled that out...
What about the lanthanides and actinides
While this explains the atomic trend across the 4th period as a whole, there are many times in the 4th period that the atomic size increases and decreases based on the orbitals and he doesn’t cover this. good video for beginners though
2:50 - 3:10 the struggle is real
Thank you!!
Amazing
so so nice
As for Argon for example how can i use the covalent bond to know its radius since it is stable ??
argon does not make covalent bonds
6:09
Why is the periodic table divided in shells, when in fact there are no shells?
Does the atomic radius decrease when we go across the periodic table from left to right until the 8th group?? can anybody tell me??
Studying 4 SAT Chem Subject test!
how was it
so it is the complete opposite of ionization energy I mean those directions like left to right and top to bottom...?
Yes, it's the opposite of ionization energy.
Atomic radius trends on periodic table
Bro can u make a video about atomic radii of ion i mean like Ca+2,Au+1 and Ag+1. Thankyou for this video I understood the whole topic.
As we go down more proton and electrons we get. As far as I understood, more proton and more electrons are going to bring the outer shell inside thts why we have small radius if we move from left to right but if we go down the shells proton and electrons increases so more attractions inside that means as we go down we are gonna get smallest size. So how come you are saying as we go down it becomes larger? Help please I am so confused
This is really late, but the reason is because the number of shells is a more important/dominant factor affecting the atomic radius.
Hindi
Can you take over my chemistry class, LOL.
chasenab ikr
you have a nice voice :D
when you started talking about what the trend is as it goes from right to left, you could literally just say if it gets smaller or bigger. instead, you were explaining things for 2 minutes before you got to the point, man. i appreciate the explaining but too much of it gets you even more confused...
I am confusion......
I know this video is 5 years old, but can anyone explain to me the few exceptions to this trend, like the transition between oxygen and fluoride?
Ninja
am i the only one who got irked by the fact that Uus 117 didnt have a thin black outline
I'm asking with you 😂
Why
Why
Who else has a test tomorrow lol
I have a test next week, how did your test from a year ago go?
@@b.eze1014 it was good!
@@pirilkohen1384 I'm glad it did
Who is here from class 11 india
Me
I hate Chemistry😢
Joshua Atanu somehow have a b- in regular chem and my friends in advanced chem have a+ I give up
This is the most confusing way I've ever heard this explained. Why don't you script these videos to make sure they don't sound so incoherent
Maddy Petersen you lie
welp ima fail my test
I understand nothing
Khan academy videos never help me. I'm sticking with Dewitt
yeah, he is the best, i agree with you. I know this is a little bit late but, th-cam.com/video/Mmti4kKDcqA/w-d-xo.html .
Bc
bakwas
So boring please make it little intresting