2
Helium (He)
3
Litium (Li)
4
Berrylium (Be)
5
Bor (B)
6
Karbon (C)
7
Nitrogen (N)
8
Oksygen (O)
9
Fluor (F)
10
Neon (Ne)
11
Natrium (Na)
12
Magnesium (Mg)
13
Aluminium (Al)
14
Silisium (Si)
15
Fosfor (P)
16
Svovel (S)
17
Klor (Cl)
18
Argon (Ar)
19
Kalium (K)
20
Kalsium (Ca)
1
Hydrogen (H)
21
Scandium (Sc)
22
Titan (Ti)
23
Vanadium (V)
24
Krom (Cr)