Chemistry Bright Light Spectrum and Lewis Dot

All atoms want a full valence shell.

All atoms want to have 2 valence electrons.

All atoms want to have 8 valence electrons.

Cation

Anion

Dogion

Onion

valence electrons

valence protons

valence neutrons

oxidation number

Group 4

Group 14

Period 4

Period 14

Group 2

Group 12

Period 2

Period 12

Group 6

Group 16

Period 6

Period 16

2

4

6

8

2

4

6

8

Gain 1 Valence electron.

Lose 1 Valence electron.

Gain 2 Valence electrons.

Lose 2 Valence electrons.

Gain 3 Valence electron.

Lose 3 Valence electron.

Gain 5 Valence electrons.

Lose 5 Valence electrons.

Alkaline Metals

Chalcogens

(Group 16)

Halogens

Noble Gases

Alkali Metals

Alkaline Metals

Chalcogens

(Group 16)

Halogens

Noble Gases

Alkali Metals