C
-3
-1
4
N
Se
1, 3, 5, 7
S
3, 5
-4
-2
Br
As
2, 4, 6
1
Te
B
Cl
Bi
Sb
F
H
1, 3, 5
Si
3
P
O
I
1, 2, 3, 4, 5