Isotopes, Isotope Notation, and Average Atomic Mass

[@vexvelour47]

Dude, you totally rule. Thanks for explaining things so clearly.... I thought I was a lost cause in my chem class until I found your videos!!!!

[@ninasharma6635]

GREAT VIDEO!! Thank you so much :)

[@kissingpink7]

great video! really helped me!

[@syevaify]

omg thank you so muc!!!!!!!!!

[@sarahmayhtoon2235]

fr thanks for being my chemistry teacher. I'll be sending you a job application for my school. :)))))

[@syevaify]

I just have to say, i didnt understand what i was reading in my text book until after I watched this. NOW I understand a whole lot.

[@gabasization1]

Umm I really need help with high school freshman year chemistry... any recommended sites or practises??

[@AgAukz]

HELLO. HOW DO YOU MAKE VIDEOS LIKE THIS? HOW YOU RECORD YOURSELF AND PUT IT ON ANY CORNER OF VIDEO???

[@littlewitchyfox]

is he an intelligent idubbbz wow

[@amandasmith9343]

How did you find the amu and its percent? I can't figure it out....

[@jickerjack]

here for homework

[@uf74ra95]

..