Periodic Table Of The Elements: 1-20

Aluminum

Symbol: Al Atomic Mass: 26.98 Atomic Number: 13

Argon

Symbol: Ar Atomic Mass: 39.95 Atomic Number: 18

Boron

Symbol: B Atomic Mass: 10.81 Atomic Number: 5

Beryllium

Symbol: Be Atomic Mass: 9.01 Atomic Number: 4

Carbon

Symbol: C Atomic Mass: 12.01 Atomic Number: 6

Calcium

Symbol: Ca Atomic Mass: 40.08 Atomic Number: 20

Chlorine

Symbol: Cl Atomic Mass: 35.45 Atomic Number: 17

Fluorine

Symbol: F Atomic Mass: 19.00 Atomic Number: 9

Hydrogen

Symbol: H Atomic Mass: 1.01 Atomic Number: 1

Helium

Symbol: He Atomic Mass: 4.00 Atomic Number: 2

Potassium

Symbol: K Atomic Mass: 39.10 Atomic Number: 19

Lithium

Symbol: Li Atomic Mass: 3 Atomic Number: 6.94

Magnesium

Symbol: Mg Atomic Mass: 24.31 Atomic Number: 12

Nitrogen

Symbol: N Atomic Mass: 14.01 Atomic Number: 7

Sodium

Symbol: Na Atomic Mass: 22.99 Atomic Number: 11

Neon

Symbol: Ne Atomic Mass: 20.18 Atomic Number: 10

Oxygen

Symbol: O Atomic Mass: 16.00 Atomic Number: 8

Phosphorus

Symbol: P Atomic Mass: 30.97 Atomic Number: 15

Sulfur

Symbol: S Atomic Mass: 32.07 Atomic Number: 16

Silicon

Symbol: Si Atomic Mass: 28.09 Atomic Number: 14