In Groups: valence electrons, electrons activity, etc.

Group 1

1 VE^-

Group 2

2 VE^-

Group 13

3 VE^-

Group 14

4 VE^-

Group 15

5 VE^-

Group 16

6 VE^-

Group 17

7 VE^-

Group 18

8 VE^-

Electron activity: group 1

lose 1

Electron activity: group 2

lose 2

Electron activity: group 13

lose 3

Electron activity: group 14

lose/gain 4

Electron activity: group 15

gain 3

Electron activity: group 16

gain 2

Electron activity: group 17

gain 1

Charge: group 1

+1

Charge: group 2

+2

Charge: group 3

+3

Charge: group 14

+/- 4

Charge: group 15

-3

Charge: group 16

-2

Charge: group 17

-1

# of electrons short: group 14

4

# of electrons short: group 15

3

# of electrons short: group 16

2

# of electrons short: group 17

1

# of bonds made: group 14

4

# of bonds made: group 15

3

# of bonds made: group 16

2

# of bonds made: group 17

1