1
Q
Hydrogen
A
H
2
Q
Boron
A
B
3
Q
Carbon
A
C
4
Q
Nitrogen
A
N
5
Q
Oxygen
A
O
6
Q
Fluorine
A
F
7
Q
Phosphorus
A
P
8
Q
Sulfur
A
S
9
Q
Potassium
A
K
10
Q
Vandium
A
V
11
Q
Iodine
A
I
12
Q
Tungsten
A
W
13
Q
Uranium
A
U
