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
19 K
Potassium
20Ca
Calcium
21 Sc
Scandium
22 Ti
Titanium
23 V
Vanadium
24 Cr
Chromium
25 Mn
Manganese
26 Fe
Iron
27 Co
Cobalt
28 Ni
Nickel
29 Cu
Copper
30 Zn
Zinc
31 Ga
Gallium
32 Ge
Germanium