Electron Shells Flashcards
1
Q
What do electrons occupy?
A
Shells (sometimes called energy levels).
2
Q
Which shells are filled first?
A
The ones closest to the nucleus.
3
Q
How many electrons are allowed in each of the shells?
A
1st shell - 2
2nd shell- 8
3rd shell- 8
4
Q
What are atoms in Group 0 with a full outer shell called?
A
Noble gases.
5
Q
What do atoms like to do when the outer shell is not full?
A
Atoms like to react to fill it.
