2
He
Helium
3
Li
Litium
4
Be
Beryllium
5
B
Bor
6
C
Karbon
7
N
Nitrogen
8
O
Oksygen
9
F
Fluor
10
Ne
Neon
11
Na
Natrium
12
Mg
Magnesium
13
Al
Aluminium
14
Si
Silisium
15
P
Fosfor
16
S
Svovel
17
Cl
Klor
18
Ar
Argon
19
K
Kalium
20
Ca
Kalsium
21
Sc
Scandium
22
Ti
Titan
23
V
Vanadium
24
Cr
Krom
25
Mn
Mangan