1
Q
Hydrogen
A
H, I
2
Q
Lithium
A
Li,3
3
Q
Boron
A
B,5
4
Q
Carbon
A
C,6
5
Q
Nitrogen
A
N,7
6
Q
Oxygen
A
0,8
7
Q
Fluorine
A
F,9
8
Q
Sodium
A
Na,11
9
Q
Magnesium
A
Mg,12
10
Q
Aluminum
A
Al, 13
11
Q
Silicon
A
Si,14
12
Q
Phosphorus
A
P, 15
13
Q
Sulfur
A
S, 16
14
Q
Chlorine
A
C1,17
15
Q
Potassium
A
K,19
16
Q
Calcium
A
Ca,20
17
Q
Manganese
A
Mn,25
18
Q
Iron
A
Fe,26
19
Q
Nickel
A
Ni,28
20
Q
Copper
A
Cu,29
21
Q
Platinum
A
Pt, 78
22
Q
Gold
A
Au,79
23
Q
Mercury
A
Hg,80
24
Q
Lead
A
Pb,82
25
Uranium
0,92
Crystals
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