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Top 10 CHEMISTRY skills and popular lessons

Chemistry skills give you a deep understanding!
0 votes
2 lessons
Lesson created In 7-9 by Asher Streets Rockstar (4.5k)  
do electrons behave in atoms? What is the octet rule? How can atoms lose or gain electrons? How are electrons involved in both ionic and covalent bonds?

+1 vote
2 lessons
Lesson created In 4-6 by Asher Streets Rockstar (4.5k)  

Learn about the symbols from the english speaking movie below:

Draw them on cards with the symbol on one side and the explaining text on the other side.

Now you can look on one side and try to remember what the symbol means or vice versa.

Thanks to iHasco

+3 votes
2 lessons
Lesson created In 4-6 by Asher Streets Rockstar (4.5k)  

Atom is a basic buidling block of matter. This doesn't mean that there are no smaller particles than atom, but only atom is stable enough to exist on its own indepently or in a combination with other atoms in a molecul.

This very nice video gives more detailed info on the topic of atoms.

What is a molecul? A molecul would be a combination of different atoms in differen numbers and variations, bonded together. A good example for this is water with a chemical formula H2O, meaning the molecul of water is made of two atoms of hydrogen (H) and one atom of oxygen (O).

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