Periodic Elements 1-20

Atomic # 1
Symbol H
Hydrogen
Atomic # 2
Symbol He
Helium
Atomic # 3
Symbol Li
Lithium
Atomic # 4
Symbol Be
Beryllium
Atomic # 5
Symbol B
Boron
Atomic # 6
Symbol C
Carbon
Atomic # 7
Symbol N
Nitrogen
Atomic # 8
Symbol O
Oxygen
Atomic # 9
Symbol F
Fluorine
Atomic # 10
Symbol Ne
Neon
Atomic # 11
Symbol Na
Sodium
Atomic # 12
Symbol Mg
Magnesium
Atomic # 13
Symbol Al
Aluminum
Atomic # 14
Symbol Si
Silicon
Atomic # 15
Symbol P
Phosphorus
Atomic # 16
Symbol S
Sulphur
Atomic # 17
Symbol Cl
Chlorine
Atomic # 18
Symbol Ar
Argon
Atomic # 19
Symbol K
Potassium
Atomic # 20
Symbol Ca
Calcium
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