Electron Shells

Question 1

What is the Whole of Chemistry?

Answer 1

The fact that electrons occupy ‘shells’ around the nucleus

Question 2

Electrons always what?

Answer 2

Occupy shells.

Sometimes called energy levels.

Question 3

What shells are always filled first?

Answer 3

The lowest energy levels.

The ones closest to the nucleus.

Question 4

1st shell -
2nd shell -
3rd shell -

Answer 4

2.
8.
8.

Question 5

When are atoms much happier?

Answer 5

When they have full electron shells.

Eg noble gases in group 0.

Question 6

In most atoms what happens?

Answer 6

The outer shell is not full.

Makes the atom want to react to fill it.