GCSE Chemistry - Elements, Isotopes & Relative Atomic Mass #2
Вставка
- Опубліковано 31 січ 2019
- This video covers:
0:16 - What an element is
2:23 - What isotopes are
3:37 - How to calculate relative atomic mass
This video is suitable for:
- All tiers
- All exam boards
- Triple and combined science
Related videos/topics:
The structure of an atom - • GCSE Chemistry - Atoms...
GCSE Chemistry playlist:
• GCSE Chemistry - Atoms...
GCSE Biology Playlist:
• Video
GCSE Physics Playlist:
• Video
So in a seven minute video, I learned more than what the teacher took an entire period to teach us, and this guy taught it much better than the teacher!
I learnt more than what i learnt in an entire term
me tooooo
and becuse of you i get the high in my class in math and since
@@nehmiya2.0 since lol
Wimp womp
After two and a half years of putting off revision, and my GSCEs coming up in less than five months, i really appreciate this video. But listen, don't do what i did, if you are in younger years, i beg of you, start revising because i have never felt so stressed in my life :)
its been 8 months since you commented that, did u do well in ur GSCEs?, I hope u did.
how did you do in your gcses ?
I'm doing the same thing right now, its bad
Started revising 10 days left I'm fine
@SSJMasters bro ur gonna fail
I’m in year 9 and because I’m someone who bases their learning off of understanding rather than just knowing a simple answer, this really helped me because my teacher just told us all we need to know is the definition, ‘same number of protons, different number of neutrons’. As I’m doing the higher paper for my test next week, I find this super helpful.
Amongus sus
same here in terms of learning! i feel like it's a waste of time if i just know what the answer to a question is, rather than actually knowing why that is - which then helps me apply this knowledge to other questions (*¯︶¯*)
@@Gabriel-zy6xv thats kinda sus 😳
Chloe hows it going with ur revision
are u home schooling
Respect man your really helping a lot of students with their exams
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With our knowledge*
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These videos are so useful and these will really help me do well in my gsces. Currently I'm in year 10 and I really want to do well so I have started revising early. I don't really learn a lot from reading or writing , I'm more of a visual learner (I learn better from watching videos) so these helped me so much and I'm sure so many people watch your videos and learn a lot. Thanks so much I really appreciate all the effort you put into your vids❤️
Hey Tappz! Thank you for such a lovely comment! Really appreciate you taking the time to let us know the videos are helping you out (and of course the comments help bump the videos up which is great for us!) Hope all your work goes well!!
Yea I'm year 7 and I want to revise early so that when I get to doing my exams in a few years it will be way easier. :)
@@jaydenmcevoy6760 smart kid
@@jaydenmcevoy6760 wish I did this ahahahha GCSE are hard af
@@jaydenmcevoy6760 there's early then there's this early jeez I'm year 11 I haven't started yet
I’m a fool who had been paying school fees just to get hated by teachers. This is free, short, better and available all the time. Thanku so much Cognito!
hi cognito!! i’ve back here again for the third time, i have mocks in a month on paper one for chem and these will finalise our science pathways, you’ve already helped me get moved up to do triple, and now you’ll help me stay there. Your videos are such a big help to me, thank you so much for posting these videos!
I am a 9th grader in Turkey. I am watching this to study for my chemistry exam and also to prepare for the AP biology course. Thanks so much for this. 🙏
Amazing video! I’m confident I can now explain ‘relative atomic mass’ to my daughter. Thank you 🙏
Hi Sian! Thanks for the comment and really happy to hear it made some sense haha! Hope your daughter finds it fascinating 🧐
I've used ur playlist for my mocks, I'll tell you how I did after I got my results
What I got for BiologyP1=grade 8, Paper 2=grade 9, Chemistry Paper 1=grade 8,Paper 2=grade 8, Physics Paper 1= grade 7, Paper 2=grade 9
Holy crap that’s so good
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That is amazing A job well done
@@mutinycreator thankyou!
Super useful since our teacher refused to explain what abundance is, thank you so much! The visuals really help
You’re really a life saver! It’s impossible to understand this in classroom but you make it much more easily to understand
Thank you very much Potato Man 🤩😊
you’re an absolute legend, mad respect. Thank you
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your way to taught us this info is too good. man i like it so much thanks for this ❤❤
i am from egypt
Thank you so much for these videos, i can see many people have benefited from them ! i understood everything very quickly, thanks
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Currently using these videos to learn chem outside of school to do gcse and its helping a ton , thanks
That's awesome EXpo, glad we could help you out 👍
woah im surprised by how easy that was for me to understand. thank you!
these are really easy to understand thanks so much. I really hope i get a good grade on my chemistry exam
I have my GCSEs in a couple of weeks and this video really helped me and your website really helps me learn but the one thing I wish you guys would improve is having short notes in your website along with the questions flash cards and videos. But I am really grateful to have found this channel. Thank you for the effort you guys put into these videos... It made learning chemistry that much more fun.
Same here with the GCSE's!! Im in year 11 too x Hope all goes well for you, lord bless you x
@@animallover630yo what happened u did good?
Hey, thank you! Yeh it went great, better than I expected! x@@justbebo4987
I can never thank this man enough ❤
helloes cognito :D
thank you so much for your work!! My science teacher confuses everybody in grade 8, but most others have tuition to help them along, so I don’t understand anything which goes on in science..
My science teacher said recently that I was going to fail my EYAs (end-of-year exams) and I’m all hopped up on spite to prove him wrong, but didn’t know how.
Your videos are my saving grace. Thank you so much
Thank you so so much i did not understand isotopes and got really bad on my test a year ago. now we are doing another test that involves this and now im ready to go! thanks a lot love
This video was very useful your lecture really helped me as a student!!!!!
hello cognito!! i have written tons of thank yous after my 3 major exams which determine whether i do triple or double science
today was the day i got the email and i did end up getting triple science
but i have to give you a big thanks for helping me passing those exams to get into the pathway i wanted
thank you so much cognito i am so happy!!! i wish you all the best with your channel
Ah wow Dvrina, congratulations!! 🥳 Really glad to have been able to help you with those exams, thanks for letting us know! 🤩
Mine is on the 13th hopefully I get triple
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@@dvrina thanks hopefully I do
@@dvrina I will let you know if I do
Btw your teaching is so good that I am in grade 4 and I am understanding it. I’m not sure if it’s just me or if it’s that your teaching is amazing. Thanks for your help.
thank you so much
i finally get it, these explanations are so clear and easy to understand, thank you
It’s been a decade since I graduated high school and these vids are helping me catch up and prepare for nursing school. Thank you!
Ah awesome, glad we could help you out Hannah, best of luck with nursing! 😊
Good luck Hannah! As a nurse myself I can tell you knowing chemistry will come in handy not only in nursing school but I'm your everyday practice as well!
I have igcse exams in 4 months, and Cognito has really helped me with my studies. Some time ago i didn't know how to balance chemical eqauations, But cognito made everything seem so easy😊
how did they go?
failed each and every paper
I heard that the boundaries were changed
These videos are a massive help to me, helps me get better in class and having a chance of passing my exams, thank you
Thanks Alifeeyy, glad you're finding the videos useful 😊
This is great for my Sec 1 exams thanks!
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Happy to hear you think so! Thanks for the support 💛
These videos are so helpful that it helped me pass my exam, thanks cognito keep it up
Thanks Anas! Well done on your exam 🥳
These videos are so helpful even as someone who learns a different curriculum. I wish there were videos like these to help students like me in my country.
Thanks for clearing up what isotopes are!
YOU ARE SAVING MY GCSES TYSM !!!!!!!!!!!!!!!!!!
Absolutely amazing, thank you
I'm in year 9 and I'm super worried because my exams start within another 4 days we had to learn everything on zoom which is super confusing. I just found this UA-cam channel and I feel ready after watching some of the lessons now . So thanks Contigo for making me confident. .😊
Yo what happened did u pass?
Thank you so much for your videos!!
i just started my igcses this week lol I'm taking math/esl/chem/CS/Arabic u teach damn good I'm determined I'll do well, so I'm studying most of my lessons early af into the year. Will update this from time to time!
Update? Its been 2 years how u doing?
@@AFineGameOfNil it was amazing! thanks to him and many online resources i was able to get 9s in every igcse (except arabic). i went on to do alevels and got 3 A*s and 1 B
Excellent video...welldone man👏👏👏👏👏👏
Thanks Cognito for these amazing videos 😃.
Thanks for the heart btw
if you edit the heart disappear btw
@@natas6158 Haha dint know that
TYSMMM I had no idea about isotopes this video is so well taught tho 💕
Thanks man, super helpful videos.
Great explanation! One question though, how will we know the abundance? Will it be given in the question?
gcses coming up in a couple of months. this helps a lot tysm
I really love your videos you should have a bigger channel!
its not just that these videos help in School studying but they are also really interesting
well done Cognito : )
Thanks Johan, glad you're enjoying them 👍
So underrated channel these videos are too 👍
i have a question, at 4:06 how did you work out the abundance of copper-63 and copper-65? ( the percentage thingies )
(Mass1*abundance1)+(mass2*abundance2)
-----------------------
100
thank u so much it really helped me to study for my exam 👌 👍
This is such a brilliant video.
great work!
THIS SO USEFUL omg thanks!!!!
This helps so much thank you!
Thx u so much u are helping many students in there exam
this is useful because i have a chemistry test tommorow and dont get the topics because my teacher cant explain properly but this is helpin me more so thanks
thank you for everything, my king
Very clear lecture 👍👌👌
This is really helpful
Great video! It really helped me thanks very much!👍
You're very welcome! 😊
Super helpful!
i didnt know the ar at all and couldnt understand it but when i saw ur vid im really happy i understand now thank u keep it up
Ah great, glad we could help Julia 😊
im doing igcse but dang is this helpful, thank you !
very useful thx Cognito
YOOOO MR COGNITO I GOT AN A ON MY SCIENCE TEST YOUR VIDS ARE SO HELPFUL THANKS A LOT!
Thank you.
thank you so much, i learn more from cognito in a 6-7 min video than the teacher when she takes 2 classes to teach us
Legend 🙏
I'm here studying English and Chemistry at the same time, and planning to watch the "GCSE Biology (9-1)" playlist after, thank you so much.
Good plan that 🙌 hope it all goes smoothly!
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Does the examination boards provide the isotope abundance? @Cognito
For anyone who is below yr 11, or even in the beginning of yr 11, start revising now , currently the day before my chem paper 1 and I’m stressing tf out, just started revising today after my maths paper
Wish me luck 😭😭😭😭
Only channel in UA-cam that does not require learning in school
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Good stuff
i have my igcse tommorow imma watch your 67 videos
This is clear, understandable and interesting. There is a point that makes me curious though - how do physicists calculate elements abundance to such a degree of exactitude?
No this guy is good 🙌🏼💯
You're videos are so helpful, thanks for taking the time to explaining this stuff to ppl like me who r shit in science 😂🖤
SUBSCRIBING TO EVERYONE WHO SUBSCRIBES TO ME its because I make music and I sent a mail to ytb saying that that channel is me with proof and they acceped my request and got verified
I swear 😂✋🏻
hey your videos are totally cool but can I know what app you use for video editing.... thanks
Yeah same
Taught me this on the day of my test
What classfies the "different" number of neutrons in the isotope? What is the base value that is measured from for it to be considered "different"
thank you for the video
I’m in year 10 and I find theses vids really helpful keep up the good work 😁👍
Glad to hear it Ount 😊
Thank you 🙏
so i have a question here that if there is a bar of copper does that bass contain all the same isotopes of copper or it can have different types of isotopes?
This is going to be good for my GCSE but one question. WHat board is this for. Mine is AQA.
its for the AQA paper dont worry 😃
4:05 4:08 how to find the percentange abundance?
Awesome 😎
Really helpful
Thx u so much
My comment is number 100. Just sayin ur videos r savin me if only i found them earlier!
In an exam would we be told the abundance of an element if we had a question like this come up? Thank you for your videos, they're so helpful!
Great question as my son just asked me same.
Yeah idk I was just about to ask that question, the video is amazing but he doesn't say how we make the abundance ( 4:27 )
his 6 hours playlist gave memore information than my 3 years of chemistry in school
Where did you find abundance percentafe from?
How do you know the percentages for the isotope abundance? Does it tell you in the exam?
Hello I have a question how can I know the abundance of the isotopes