What's the Difference between Mass Number and Atomic Weight?

I love you. You are so thorough, thank you so much!!!

Difficult concept, made easy.

You are great now i understand the whole concept

you lost me on how you you found out boron is 20 per and 80 percent

Thank you!!! That was easy to understand

This taught me about 5 more things that I expected to learn

Perfect explanation. Thank you so much for this concise explanation, it's so helpful, I was confused. 😊

Awesome

I was reading this in my book and my head was spinning. I understand now, thanks. I do have a question though. How did you come up with 20% boron 10
and 80% boron 11.

P-E-R-F-E-C-T EXPLANATİON THANK YOU SOOOO MUCH FOR THİS VİDEO

Great explaination... I was really confused 😵 but now my concept of difference between atomic weight and atomic mass is 🔮crystal clear

Thank you ❤️

What an Amazing Explanation Sir.
Tomorrow I have my Chemistry Exam and I was really confused about it
Thank you so much for explaining 😃

this is so earth-like calculation,. not really universal, because we are just making an assumption that on planet 'earth' out of all boron atoms there are 20% boron-10 and 80% boron-11..... does that really matter on a universal scale? especially when we become multi planetary species... this is wrong

Thank you 😊

You are a brilliant teacher! Love your explanation! Terrific!

Superb sir @india

After watching godly explanation, I will just 🤩 wow

amazing

Brooooo, tysm I refered so many books and videos but nothing is clearer than this video.........
Love you 3000 man..........

Ty <3

Dear Mr. Tyler:

I love your videos..you are awesome. However..you say one Boron-10 isotope "weighs" 10 amu...this is confusing to me. 10 amu is a Mass, not a weight.

I think the term "atomic weight" is confusing...as I understand it, the word "weight" refers to the "weighted" average...ie: the percent of the Boron that exists as B-10 is different than B-11 and therefore the average is "weighted" toward the mass of the more common isotope. You explain this beautifully with your pie graph.

It has nothing to do with "weight" associated with amu's...

For example, let's say you have 4 exams in a class. The first 3 are worth 20% of your grade, and the 4th exam, let's call it the final exam, is worth 40%. This means the final exam is "weighted"; just like Boron-11 is "weighted" because it is more common than B-10.

That is why I think average atomic mass is such a better term than atomic weight...

Where am I going wrong?

M. Chow

Concept cleared..

Keep uploading 11th and 12th syllabus.. u will definitely get more than 3 millions ...luv from tamilnadu

Dear sir I randomly click on your video and it is just amazing ❤️ lot of love from india 🇮🇳

My kind of teacher. Kudos

I loved your presentation. However, I would love it more if you send me how to get 20% and 80% mass in calculation (or formula) please?

My First lecture on ur channel, was forced to subscribe by the way of ur clearing of concepts.👍

Such a great explaination .🙏

nice but how human calculated there are 20% of boron 10 present in the world and 80% of boron11 present in the world. and there are infinite universe and there are infinite numbers of planet so boron present in other planet also. MAY BE IF TAKE A BORON SAMPLE FROM EARTH THERE ARE 20 % OF B10 AND 80% OF B11.. BUT IF U COLLECT BORON FROM OTHER PLANET IN FUTURE THEN U MAY FIND DIFFER BETWEEN PERCENTAGE....

Thank you so much

Sir thanks you so. Much you are just like walter Lewin but for chemistry


Please start uploading again

You rescued me thank you so much 🌹

Who is watching in 2020 😃

this video was borong

Omg. Thank you sir!

wow! thank you so much!!

Wait... you just made two videos for the difference between atomic number and atomic MASS/WEIGHT and both are identical so... I assume that atomic mass is equal to atomic weight, isn't it?
I'm not trying to be ironic, I've been a long time trying to figure out the difference. In physics there is an obvious one, it seems it doesn't matter in chemistry.

(Amazing videos, by the way. You're an inspiration)

be my teacher pleasee

Thank you for saving my chem exam :):)

You could not ask for a more lucid explanation. Thanks.

thank You! I love and understand Chemistry better now!! Please make videos for Chemistry 2!

🙏🙏

Thanks and love from India

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I have seen 10 videos on this topic but I it understand when I see this video. Very nice video

The way this man teaches is solid gold

Who disliked his videos??!! He's an awesome teacher!!

Thank you so much professor ❤️