Practice Problems: Net Charge, Mass Number, Atomic Number

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Practice and example problems to help you learn how to determine and calculate the net charge, mass number, and atomic number of atoms. Also we'll look at how to determine the number of protons, neutrons, and electrons in an atom.

[captainnootnoot]

The people who make videos like this are the ones who should really be the teachers. Thank you sooo much for the amazing videos, you've helped out so many people (including me).

[Boney]

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[sucharthanmontree]

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[romiramirez]

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[anickerson]

You're probably one of the best teachers EVER.
Thank you so much for making these videos. I never thought I'd be able to wrap my mind around all this chemistry work. But thanks to you, I'm not struggling anymore.

[ameliaeastep]

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[jniuhulol]

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[StargazerFS]

Exceptional explanations, easy to grasp, and raises more questions in my mind regarding the motions of electrons in their shells, and the force responsible for their movement, since energy cannot be created, then how can an electron stay in motion without exhausting the energy responsible for its motion? What is the electrons fuel source? My brain is reaching critical mass thinking about it!

[faithirismacilvaine]

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[josephprice]

very good teacher .
my school teachers taught me these lessons 10
times still i could not understand it, but his videos
made me understand it in first time.

[ozzim]

Tyler I want to thank you, you have accomplished something my high school science teacher couldn’t, you actually exsplained this in a way that made sense and I was able to learn something.

Unlike my high school science class I’m actually looking forward to the next lesson.
Thanks.

[malyasiolek]

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[candicevs.candice]

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[yolarola]

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[diva]

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[nadineh]

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[Sonia-jpbt]

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[patiencemuvindi]

Am not good at chemistry but these videos ae helping me to understand much better than textbooks..i really appreciate thanks a lot ...

[tdewitt]

Hey everyone, I'm here to help. If you have any questions or just want to learn more, click on the link in the description above. It'll take you to a page where you can ask me questions.