Periodic Table 1 - 20

Question 1

Chemical Symbol: Li
Atomic Number: 3
Atomic Mass: 6.9410

Answer 1

Lithium

Question 2

Chemical Symbol: He
Atomic Number: 2
Atomic Mass: 4.0026

Answer 2

Helium

Question 3

Chemical Symbol: H
Atomic Number: 1
Atomic Mass: 1.0078

Answer 3

Hydrogen

Question 4

Chemical Symbol: Be
Atomic Number: 4
Atomic Mass: 9.0122

Answer 4

Beryllium

Question 5

Chemical Symbol: B
Atomic Number: 5
Atomic Mass: 10.811

Answer 5

Boron

Question 6

Chemical Symbol: C
Atomic Number: 6
Atomic Mass: 12.011

Answer 6

Carbon

Question 7

Chemical Symbol: N
Atomic Number: 7
Atomic Mass: 14.007

Answer 7

Nitrogen

Question 8

Chemical Symbol: O
Atomic Number: 8
Atomic Mass: 15.999

Answer 8

Oxygen

Question 9

Chemical Symbol: F
Atomic Number: 9
Atomic Mass: 18.998

Answer 9

Fluorine

Question 10

Chemical Symbol: Ne
Atomic Number: 10
Atomic Mass: 20.180

Answer 10

Neon

Question 11

Chemical Symbol: Na
Atomic Number: 11
Atomic Mass: 22.990

Answer 11

Sodium

Question 12

Chemical Symbol: Mg
Atomic Number: 12
Atomic Mass: 24.305

Answer 12

Magnesium

Question 13

Chemical Symbol: P
Atomic Number: 15
Atomic Mass: 30.974

Answer 13

Phosphorus

Question 14

Chemical Symbol: Si
Atomic Number: 14
Atomic Mass: 28.086

Answer 14

Silicon

Question 15

Chemical Symbol: Al
Atomic Number: 13
Atomic Mass: 26.982

Answer 15

Aluminium

Question 16

Chemical Symbol: S
Atomic Number: 16
Atomic Mass: 32.065

Answer 16

Sulfur

Question 17

Chemical Symbol: Cl
Atomic Number: 17
Automic Mass: 35.453

Answer 17

Chlorine

Question 18

Chemical Symbol: Ar
Atomic Number: 18
Mass Number: 39.948

Answer 18

Argon

Question 19

Chemical Symbol: K
Atomic Number: 19
Atomic Mass: 39.098

Answer 19

Potassium

Question 20

Chemical Symbol: Ca
Atomic Number: 20
Atomic Mass: 40.078

Answer 20

Calcium