H
hydrogen (1)
He
helium (2)
Li
lithium (3)
Be
beryllium (4)
B
boron (5)
C
carbon (6)
N
nitrogen (7)
O
oxygen (8)
F
fluorine (9)
Ne
neon (10)
Na
sodium (11)
Mg
magnesium (12)
Al
aluminium (13)
Si
silicon (14)
P
phosphorus (15)
S
sulfur (16)
Cl
chlorine (17)
Ar
argon (18)
K
potassium (19)
Ca
calcium (20)
Sc
scandium (21)
Ti
titanium (22)
V
vanadium (23)
Cr
chromium (24)