Half-Life Calculations: Radioactive Decay

แชร์
ฝัง
  • เผยแพร่เมื่อ 24 ธ.ค. 2024

ความคิดเห็น • 446

  • @SteveRelentless
    @SteveRelentless 9 ปีที่แล้ว +483

    I love when i go online and find a tutor thats high as fuck and teachs like a boss.

    • @hmz01_
      @hmz01_ 7 ปีที่แล้ว +4

      Lmaoo

    • @Zerfixedfn
      @Zerfixedfn 10 หลายเดือนก่อน

      Fr

  • @sinekinematic
    @sinekinematic 11 ปีที่แล้ว +414

    did this man sneeze because bless this man for helping me.

  • @zayedalsuwaidi7697
    @zayedalsuwaidi7697 8 ปีที่แล้ว +45

    Your explanations are great because you don't mention what the equations mean, you actually label them. Complete boss.

  • @blackberryhedge
    @blackberryhedge 9 ปีที่แล้ว +36

    ... and just like that, in 3 minutes, you did better than pages and hours of my chemistry book and lecture. Thank you!!!!

  • @DaScribbler
    @DaScribbler 10 ปีที่แล้ว +187

    Very enthusiastic.
    Enjoyable.
    Concise.
    I learned.

  • @lizwimbewu9024
    @lizwimbewu9024 11 ปีที่แล้ว +22

    man I so wish you were my lecture. you just make things seem so easy and understandable.

  • @Abdihakim0512
    @Abdihakim0512 11 ปีที่แล้ว +6

    Your the man, You explain better than a million teachers with their videos

  • @SergioInzunza
    @SergioInzunza 9 ปีที่แล้ว +44

    "Dont be a fool!" lol

  • @CosmicMomentumX
    @CosmicMomentumX 8 ปีที่แล้ว +198

    Finals tomorrow anyone?

  • @lotamole
    @lotamole 8 ปีที่แล้ว +34

    This guy is a legend

  • @Jessie-bx8xc
    @Jessie-bx8xc 6 หลายเดือนก่อน +2

    I love watching 11 year old tutorials that still work and teach me chem simple

    • @GeGeLimited
      @GeGeLimited 6 หลายเดือนก่อน

      someone still watching in 2024 👀 same

  • @martinel9181
    @martinel9181 9 ปีที่แล้ว +86

    dat intro

  • @Bluelagoon808
    @Bluelagoon808 11 ปีที่แล้ว +81

    Thank you so much. Why can't my teacher just say this?

    • @semir2607
      @semir2607 10 ปีที่แล้ว +6

      Because teachers also have nice degrees, and they want to feel good about their fancy degrees.

    • @OfMiceAndCody
      @OfMiceAndCody 10 ปีที่แล้ว +25

      Because they don't truly understand the concept well enough to simplify it.

    • @lorodz
      @lorodz 10 ปีที่แล้ว +3

      ***** highly agree!

  • @mikaylawashington1489
    @mikaylawashington1489 2 หลายเดือนก่อน +1

    Been through tons of vids and this one finally helped me without all the other complicated stuff good work lol

  • @catherinehall9526
    @catherinehall9526 3 ปีที่แล้ว +4

    I watched several videos on this topic and this is by far the most clear and concise explanation I was given! Thank you so much for making this video!

  • @Dr.StompYT
    @Dr.StompYT 3 ปีที่แล้ว +4

    rise and shine mr freeman

  • @dougthepug5199
    @dougthepug5199 2 ปีที่แล้ว +4

    This man just single-handedly saved me for my chemistry test today

  • @WorldwideAthlete
    @WorldwideAthlete 7 หลายเดือนก่อน +1

    So glad I can go online and find a great explanation from 11 years ago

  • @ElcoolMo
    @ElcoolMo ปีที่แล้ว +1

    your still saving lives 10 years later

  • @whoooooo5647
    @whoooooo5647 หลายเดือนก่อน +1

    THANKYOUUUUU SO MUCHHHH!! I've been struggling with this because I need someone to like explain every step by step and guess what?? YOU JUST DID IT. Thankyouuuu

  • @Ks-ly6ov
    @Ks-ly6ov 2 ปีที่แล้ว +2

    I love how you point to the words and numbers. Great video. Very helpful

  • @moon.cat.
    @moon.cat. ปีที่แล้ว

    After watching numerous videos, I was still lost! This is The Best and easiest way to calculate Half life problems!!! I finally got it, thank you!!

  • @roberthart1336
    @roberthart1336 8 ปีที่แล้ว +5

    Taught me half life calcs before my mid year exam, legend!!

  • @luken6362
    @luken6362 7 ปีที่แล้ว +1

    Finished AP chem exam, still goes back to chemistnate for precalc help

  • @apothe6
    @apothe6 ปีที่แล้ว

    This is the best video on the topic. It uses the best formula and shows how to solve for the exponent with logs. Thank you so much.

  • @alamjottiwana3650
    @alamjottiwana3650 10 ปีที่แล้ว +1

    God bless you Nate, had a test in 4 hours, and didn't know how to solve for exponents.

  • @WestVision
    @WestVision 2 ปีที่แล้ว

    you are the greatest teacher i have ever seen. Im not even exaggerating.

  • @rithamassawe310
    @rithamassawe310 3 ปีที่แล้ว

    Maaaannn thank you so much i was finding easy way to teach my students and here i met you. Excited to go to class now. Thanks alot.

  • @naledimothamane5651
    @naledimothamane5651 8 หลายเดือนก่อน

    This man just saved my semester, I appreciate you

  • @moonhq.medhat8825
    @moonhq.medhat8825 7 ปีที่แล้ว +9

    He's so excited its so cute

  • @nightmarionnefury5516
    @nightmarionnefury5516 4 ปีที่แล้ว +1

    Even just the formula has saved my life, especially with the teacher never teaching this and proceeding to put it on the quiz :))))))))))))

  • @Bandtx
    @Bandtx 10 ปีที่แล้ว +1

    This guy is really goofy, but I like that, makes things interesting

  • @connorvincent6287
    @connorvincent6287 8 ปีที่แล้ว +12

    This video helped me sooo much and I really like the way you teach definitely subscribing!

  • @vikramkulkarni3928
    @vikramkulkarni3928 5 ปีที่แล้ว +1

    chemistNATE, thank you so so much! I figured this out now, my teacher doesn't teach properly, but you solved my problem. Thanks again!

  • @binderpalkaur9753
    @binderpalkaur9753 5 ปีที่แล้ว +3

    Thank you so much for the formula, really appreciate that and I liked and shared it too. Only 8 days left for IGCSE physics exam,soooo.

  • @tfoprincess
    @tfoprincess 8 ปีที่แล้ว +25

    you're killing me XD "yo just guess..I'm a math wiz fyi"

    • @rollyespartero4990
      @rollyespartero4990 6 ปีที่แล้ว

      Please help. For the first problem. How come that
      (.5^24.82758621=0.0000336?)

  • @tumelonkhabanyane7086
    @tumelonkhabanyane7086 ปีที่แล้ว

    This man just single handedly saved my semester.😭🔥

  • @ElphasKiprop-j1e
    @ElphasKiprop-j1e ปีที่แล้ว

    The real antidote of radioactivity calculation. Thanks alot sir.

  • @eaindraykit
    @eaindraykit 9 ปีที่แล้ว +5

    this saved my life 🙏🏻 chem test cram

  • @Akin_-ke6oz
    @Akin_-ke6oz 3 ปีที่แล้ว

    This guy teaches so much better than my actual school teacher

  • @cubajunior5832
    @cubajunior5832 3 ปีที่แล้ว +1

    Thank you so much. I just watched this and am amazed about how my physics test is going to be made easier. May God bless you for me.

  • @daevardone08420
    @daevardone08420 11 ปีที่แล้ว

    You da man!
    ------
    Struggled for eternity on understanding this from my professors and teachers.
    Learned it here in a little more than 8 minutes.
    One like for this vid.

  • @ladyinred396
    @ladyinred396 7 ปีที่แล้ว

    thank you for the video. for these 7 minutes I understood more then from 3 weeks of lectures!!!

  • @cosmeticnurseliz
    @cosmeticnurseliz 7 ปีที่แล้ว +9

    it's like the textbooks make it hard on purpose or something

  • @beckseamons
    @beckseamons 2 ปีที่แล้ว +2

    chemistNATE absolute baller

    • @chemistNATE
      @chemistNATE  2 ปีที่แล้ว

      Takes one to know one

  • @sheffyr5724
    @sheffyr5724 8 ปีที่แล้ว

    damn ! my physics teacher couldnt explain this to his class in two weeks, and u did it in 7 mins ! thanks!

  • @ThePanzerlancer
    @ThePanzerlancer 8 ปีที่แล้ว +9

    "use bedmas DONT BE A FOOL!!!"
    hhaahahah made me laff (im sad)

  • @zacharymansell3674
    @zacharymansell3674 2 ปีที่แล้ว

    I love you you may have inspired me to get back into some math after a lot of bad teachers

  • @ChilangaBanda08
    @ChilangaBanda08 8 ปีที่แล้ว +2

    I love you, thanks for telling us to work it backwards!!! Greetings from Houston, Texas..

  • @thapeloseanego318
    @thapeloseanego318 9 ปีที่แล้ว +20

    as for "don't be a fool.." and "I don't care" :v :v :v I enjoyed this tutorial

  • @jotarothanos9862
    @jotarothanos9862 3 ปีที่แล้ว

    Truly a one of a kind wizard, thank you wise stranger...

  • @BassKicker48
    @BassKicker48 11 ปีที่แล้ว

    THANK YOU SO MUCH!!!! My teacher just handed these problems to us when we were leaving class!! Gotta Love Honors Chem.....(Sarcasm)

  • @tomm3103
    @tomm3103 2 ปีที่แล้ว

    I love this guys attitude

  • @Jastotz67
    @Jastotz67 11 ปีที่แล้ว

    AWESOME DUDE. I have a prelim exam tomorrow and I had no idea how to do it until now.

  • @Tina93_
    @Tina93_ 7 ปีที่แล้ว

    yo chemisNate, thanks a lot for the problem 2 you showed. I was looking for it in the internet. gladly found it in your vid. thanks

  • @tungstenejector
    @tungstenejector 10 ปีที่แล้ว +6

    When i enter 1440 divided by 58 i get the answer 24.82758621. When you do it you don't seem to get he decimal point after 24. Also the later calculation you get the correct amount of zeros before the numbers start whilst on my CASIO fx-85GT calculator i get 3.358550105x10-8. I know what 10-8 means i just wondered if you could tell me how i get my calculator to give the answers in the same form as you get?

  • @debbiemelinette4121
    @debbiemelinette4121 8 ปีที่แล้ว

    your videos are better than any others

  • @huyanhle
    @huyanhle 2 ปีที่แล้ว

    Hi ChemistNATE and everyone,
    Could you please help me with this following question
    Radioactive materials are considered to be relatively safe when their activity has fallen below 0.1% of their initial value.
    (a) How much half-lives does this take? (Answer = 10 half-lives)
    (b) Plutonium-239 is a by product of nuclear reactors. Its half-life is 24 000 years. How long does the plutonium-239 have to be stored as nuclear waste before it is considered safe to handle? (Answer - 240 000 years)

  • @maryamnaif9410
    @maryamnaif9410 5 ปีที่แล้ว

    This is the best teacher ever!!!

  • @DONphantasmo
    @DONphantasmo 4 ปีที่แล้ว

    Wow, corny and bland jokes. But, literally the best explanation of half-life calculation I have seen... Great job Nate...

  • @HellenaAchieng
    @HellenaAchieng 8 หลายเดือนก่อน +1

    0.51...the idrc had me
    3.33...use BODMAS, don't be fOOl
    5.36...im also a math whiz fyi
    It's 2024, best teacher ever 😂

  • @rae7305
    @rae7305 9 ปีที่แล้ว +5

    Isn't it easier to use the 0.693/k = (half-life), solve for K and then use the first-order rate law ln(At/Ao)= --kt ? Substituting k in Ao = initial amount and At = amount remaining. I used these for each problem and got the same answers. Maybe it's just me, but this way seems much faster and easier to solve. Anyone else prefer this method?

    • @huntersikari
      @huntersikari 9 ปีที่แล้ว

      +Rachel Manno.I wud but i didn't really get what you said, can you do video on that?

    • @TheOomen2012
      @TheOomen2012 8 ปีที่แล้ว +1

      +Rachel Manno All roads lead to rome, I prefer using logarithm just because I use it allot but I guess your method also works well.

    • @rae7305
      @rae7305 8 ปีที่แล้ว +1

      +TheOomen2012 I understand and hope I didn't offend. I was just taught a different way and wanted to offer it up in case anyone else was struggling like me. I find that seeing alternatives sometimes helps me learn better. Thank you

    • @khayyam3000
      @khayyam3000 5 ปีที่แล้ว

      @@rae7305 Sorry Rae.. His way is soooo much easier especially for those whom are a little weaker in the Math Department

  • @Awesomeanne06
    @Awesomeanne06 3 ปีที่แล้ว +1

    the intro is giving vine energy

  • @Nocturtle117
    @Nocturtle117 6 ปีที่แล้ว +3

    Thank you so much. You're a fricking legend.

  • @aldrineusebio192
    @aldrineusebio192 10 ปีที่แล้ว +3

    Without this Math Wizz..
    I'm totally insane..xD
    Thanks^^

  • @courtneymaudena-pelkey9343
    @courtneymaudena-pelkey9343 7 ปีที่แล้ว

    Thank you god! i understood a 2 hr lecture in7.4 minutes!! thanks!

  • @ChefFarisMom3
    @ChefFarisMom3 4 ปีที่แล้ว

    Many many manyyyyyyyyyyyyyyy Thanks Sir... a lesson forgotten for so many years... thanks for making it easy for me...

  • @martyruth77
    @martyruth77 ปีที่แล้ว

    stg, this dude is gonna be getting me through my bioengineering degree

  • @reaper7884
    @reaper7884 ปีที่แล้ว +1

    You the best teacher 👑

  • @hussainkamran3955
    @hussainkamran3955 2 ปีที่แล้ว

    I have an exam tomorrow and this video from so long ago helped😍

  • @justice873
    @justice873 8 ปีที่แล้ว +2

    Wow did not expect the last part.

  • @cardinal198
    @cardinal198 10 ปีที่แล้ว

    Your way of explaining is so amazing and simple. Thank you

  • @Streetmusicvk
    @Streetmusicvk 8 ปีที่แล้ว +1

    thank you very much...you have made me a master in solving half life problems.

  • @doug213
    @doug213 8 ปีที่แล้ว +1

    You said "use bedmis don't be a fool"? Your remark was made at 3:30 in your video. I'm assuming that is an acronymn? Would love to know what it means?

    • @doug213
      @doug213 8 ปีที่แล้ว +1

      I found it. I know it as Please Excuse My Dear Aunt Sally for the order of operatiions. Thanks, by the way. Great video.

    • @chemistNATE
      @chemistNATE  8 ปีที่แล้ว +2

      Yeah man, I've heard that here in Canada we use BEDMAS (brackets, exponents, division, multiplication, addition, subtraction) but others use P for parentheses, etc. Thanks for commenting that here, I'm sure it'll help someone else !

  • @Vikash_Kumar8090
    @Vikash_Kumar8090 9 ปีที่แล้ว +1

    Thanks for giving a easy way to check out half life 😊😊

  • @elizahlakao5539
    @elizahlakao5539 2 หลายเดือนก่อน

    you are so funny and your video is really helpful, your video just helped me with the doubts that i have .

  • @lukeborges9444
    @lukeborges9444 5 ปีที่แล้ว +1

    This guys the Goat 🐐

  • @remo0075
    @remo0075 ปีที่แล้ว +1

    Its been 10 YEARS woh!

  • @anayavij
    @anayavij 5 ปีที่แล้ว

    I don't even care tht he was a bit cocky anymore
    I understood here out of all the other 10+ videos I watched
    thanks nate!
    *oh and yea exam in an hour!!!

  • @chrissealey7040
    @chrissealey7040 7 ปีที่แล้ว

    John Malovich is teaching me halflife calculations!

  • @sabinabibor-fontaine3560
    @sabinabibor-fontaine3560 8 ปีที่แล้ว +4

    First math Video that made me laugh !! XDDD Thanks for your energy and explanation. That was.... fun ? 0o

  • @erikamadray35
    @erikamadray35 9 ปีที่แล้ว

    Please disregard - I was using the wrong method to enter the exponent! Yay! Thank you, again chemistNATE!

  • @motivationwithalii
    @motivationwithalii 5 ปีที่แล้ว +2

    whos ready for finals this week?

  • @khayyam3000
    @khayyam3000 5 ปีที่แล้ว

    Brooooooooo!!!!! All Hail the King.. ChemistNATE!!!

  • @gabrielionescu2963
    @gabrielionescu2963 5 ปีที่แล้ว

    Got a question saying " The activity of a sample falls to 0.60 of its original value after 100s. Find the decay constant." What formula should i use? How would you answer that?

  • @erhpin7796
    @erhpin7796 2 ปีที่แล้ว

    "Use BODMAS. Don't be a fool"
    I felt called out lmao

  • @nolankrishnaa7
    @nolankrishnaa7 8 ปีที่แล้ว +2

    THANKKKK YOU SO MUCH SAVED ME ALOT ! Haha i laughed when you said you're a math Wiz !

  • @tadeolemu8375
    @tadeolemu8375 2 ปีที่แล้ว

    Thank you my guy for explaining. It truly helps a lot!

  • @AcireZerimar
    @AcireZerimar 10 ปีที่แล้ว

    Thank you, thank you, thank you for your clear and straight to the point explanations!

  • @iml2492
    @iml2492 8 ปีที่แล้ว +1

    Why did you use log instead of LN? Does it make a difference?

    • @oreosc
      @oreosc 8 ปีที่แล้ว

      no it does not

    • @JohnG-yv4zk
      @JohnG-yv4zk 8 ปีที่แล้ว

      The great British baking show

    • @JohnG-yv4zk
      @JohnG-yv4zk 8 ปีที่แล้ว +1

      The

    • @evelynmalo8489
      @evelynmalo8489 8 ปีที่แล้ว +1

      only when the problem has e in it but the problem he used didn't so you would use log

  • @polk304
    @polk304 11 ปีที่แล้ว +1

    QUESTION- does this work for all half life calculations? including second order reaction half-life?

  • @benjaminvenegas800
    @benjaminvenegas800 8 ปีที่แล้ว

    THANK YOU SOOOO MUCH! BEST VIDEO I HAVE Found ONLINE!!!! YOU SAVED MY LIFE❤️❤️

  • @aoliravioli
    @aoliravioli 5 ปีที่แล้ว +2

    Bruh I have a science exam tomorrow and this is the only thing I don’t know

  • @Be1smaht
    @Be1smaht 11 ปีที่แล้ว

    emergency services because he is on fire with videos

  • @hussamskafi2598
    @hussamskafi2598 9 ปีที่แล้ว

    There is also A=Ao x e^( - decay constant x t )

  • @jz1946
    @jz1946 ปีที่แล้ว

    Thank you so much sir, I felt lost earlier but this really helped me

  • @yuliaromalis51
    @yuliaromalis51 ปีที่แล้ว

    This was very helpful. I am stuck doing a similar problem and was hoping you could help. I am trying to figure out when a live source should be removed. I am given that the source is 4.0mCi and the half life is 2.69 days. In how long should the source be removed if the dose we are prescribing is 2.8x10^13 disintegrations?

  • @Internalling
    @Internalling 7 ปีที่แล้ว

    As working out the half life is in the syllabus for my gcses, for the second part of the video for working out the time, is this the same principle for figuring out the actual amount of half life's if instead the time is given to you or is there a different solution to it?

    • @barnabasdecsi1806
      @barnabasdecsi1806 ปีที่แล้ว

      Based on my calculations, no you can't use this 1 in 1

  • @TooFunnyToLive
    @TooFunnyToLive 7 ปีที่แล้ว

    Holy shit thank you. I learned this a while ago and completely forgot it the day before a test.

  • @calmacyd
    @calmacyd 7 ปีที่แล้ว

    What mode is your calculator set to here? Thanks in advance!