Elements of the Periodic table 1-20

Hydrogen

Chemical Symbol: H

Atomic Number: 1

Atomic Mass: 1

Helium

Chemical Symbol: He

Atomic Number: 2

Atomic Mass: 4

Lithium

Chemical Symbol: L

Atomic Number: 3

Atomic Mass: 7

Beryllium

Chemical Symbol: Be

Atomic Number: 4

Atomic Mass: 9

Boron

Chemical Symbol: B

Atomic Number: 5

Atomic Mass: 11

Carbon

Chemical Symbol: C

Atomic Number: 6

Atomic Mass: 12

Nitrogen

Chemical Symbol: N

Atomic Number: 7

Atomic Mass: 14

Oxygen

Chemical Symbol: O

Atomic Number: 8

Atomic Mass: 16

Fluorine

Chemical Symbol: F

Atomic Number: 9

Atomic Mass: 19

Neon

Chemical Symbol: Ne

Atomic Number: 10

Atomic Mass: 20

Sodium

Chemical Symbol: Na

Atomic Number: 11

Atomic Mass: 23

Magnesium

Chemical Symbol: Mg

Atomic Number: 12

Atomic Mass: 24

Aluminium

Chemical Symbol: Al

Atomic Number: 13

Atomic Mass: 27

Silicon

Chemical Symbol: Si

Atomic Number: 14

Atomic Mass: 28

Phospherus

Chemical Symbol: P

Atomic Number: 15

Atomic Mass: 31

Sulfur

Chemical Symbol: S

Atomic Number: 16

Atomic Mass: 32

Chlorine

Chemical Symbol: Cl

Atomic Number: 17

Atomic Mass: 35

Argon

Chemical Symbol: Ar

Atomic Number: 18

Atomic Mass: 40

Potassium

Chemical Symbol: K

Atomic Number: 19

Atomic Mass: 39

Calcium

Chemical Symbol: Ca

Atomic Number: 20

Atomic Mass: 40