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