Electron Shells

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  • Created by: joshd
  • Created on: 29-03-14 16:07
What do electrons always occupy?
Shells (sometimes called energy levels)
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What are always filled first?
The lowest energy levels are always filled first - these are the ones closest to the nucleus.
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What are the number of electrons allowed in the shells?
1st shell: 2 2nd shell: 8 3rd shell: 8
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When are atoms happier?
When they have full electron shells.
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What is it like in most atoms with the outer shell? What does this therefore make?
In most atoms the outer shell si not full and this makes the atom want to react.
5 of 5

Other cards in this set

Card 2

Front

What are always filled first?

Back

The lowest energy levels are always filled first - these are the ones closest to the nucleus.

Card 3

Front

What are the number of electrons allowed in the shells?

Back

Preview of the front of card 3

Card 4

Front

When are atoms happier?

Back

Preview of the front of card 4

Card 5

Front

What is it like in most atoms with the outer shell? What does this therefore make?

Back

Preview of the front of card 5

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