Hydrogen
1
H
Helium
2
He
Lithium
3
Li
Beryllium
4
Be
Boron
5
B
Carbon
6
C
Nitrogen
7
N
Oxygen
8
O
Fluorine
9
F
Neon
10
Ne
Sodium
11
Na
Magnesium
12
Mg
Aluminium
13
Ag
Silicon
14
Si
Phosphorous
15
P
Sulfur
18
S
Chlorine
17
Cl
Argon
18
Ar
Potassium
19
K
Calcium
20
Ca
Scandium
21
Sc
Titanium
22
Ti
Vanadium
23
V
Chromium
24
Cr