Isotopes and How to Calculate Atomic Weight

Josh Kenney explains isotopes and atomic weight. This is part 3 in the series on Atoms and Elements.
What will you learn in this video?
1. The definition for isotope and atomic weight
2. How to calculate the atomic weight of an element

[@TheScienceClassroom]

2:08 I meant to say/write 10,000 Boron atoms. Sorry for the confusion!!

[@justicetadashi6299]

Thank you guys very much, could you guys please also teach some of Grade 11 chemistry we possibly find problems with?

[@cosmoszeeist7839]

Thank you so much...

[@matthewmotor18]

Thanks, couldn’t find the answer key

[@nato8711]

What year is this for?

[@MwithTheW-thereal1]

wait a minute, the last question shows 11.01
isn't it meant to be 0.1101?

[@kentheengineer592]

Atomic Weight Is Like 2/10 Difficultly But Its A Little Complex

[@hellomoro7625]

2:07 I think he means 10,000 boron atoms

[@TheScienceClassroom]

Yes, sorry about that! 🤦‍♂️

[@angelmaecuran8074]

Wait... what? How did the 1991 turned into 1919?