1
H
Hydrogen
2
Li
Lithium
3
Be
Beryllium
4
Na
Sodium
5
Mg
Magnesium
6
K
Potassium
7
Ca
Calcium
8
Rb
Rubidium
9
Sr
Strontium
10
Cs
Cesium
11
Ba
Barium
12
Fr
Francium
13
Ra
Radium
14
Fe
Iron
15
Cu
Copper
16
Zn
Zinc
17
Ag
Silver
18
Au
Gold
19
Hg
Mercury
20
U
Uranium
21
B
Boron
22
C
Carbon
23
N
Nitrogen
24
O
Oxygen
25
F
Fluorine
26
He
Helium
27
Ne
Neon
28
Al
Aluminum
29
Si
Silicon
30
P
Phosphorus
31
S
Sulfur
32
Cl
Chlorine
33
Ar
Argon
34
Br
Bromine
35
Kr
Kryton
36
I
Iodine
37
Xe
Xenon
38
Rn
Radon