1
H-Hydrogen
2
He-Helium
3
Li-Lithium
4
Be-Beryllium
5
B-Boron
6
C-Carbon
7
N-Nitrogen
8
O-Oxygen
9
F-Fluorine
10
Ne-Neon
11
Na-Sodium
12
Mg-Magnesium
13
Al-Aluminum
14
Si-Silicon
15
P-Phosphorus
16
S-Sulfur
17
Cl-Chlorine
18
Ar-Argon
19
K-Potassium
20
Ca-Calcium
21
Sc-Scandium
22
Ti-Titanium
23
V-Vanadium
24
Cr-Chromium