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Flashcards in Electron Shells Deck (5):
1

Electrons always occupy [ ]

Shells (sometimes called energy levels)

2

Which energy levels are filled with electrons first?

The lowest energy levels

3

How many electrons can go in the first 3 shells?

2,8,8

4

When do atoms want to react? and when not?

If an atom has a full outer shell (like noble gases) they are nonreactive
If they don't have a full outer shell they're reactive

5

Which shell has the highest energy level?

The furthest out shell