Question

First 20 elements of periodic table with symbols and atomic number

Answer 1

Hydorgen(H) - 1

Helium(He) - 2

Lithium(Li) - 3

Beryllium (Be) - 4

Boron (B) - 5

Carbon(C) - 6

Nitrogen(N) - 7

Oxygen(O) - 8

Fluorine (Fl) - 9

Neon(Ne) - 10

Sodium(Na) - 11

Magnesium(Mg) - 12

Aluminum (Al) - 13

Silicon(Si) - 14

Phosphorus(P) - 15

Sulphur(S) - 16

Chlorine(Cl) - 17

Argon(Ar) - 18

Potassium(K) - 19

Calcium(Ca) - 20

Answer 2

The first 20 elements of the periodic table :

1.H —Hydrogen

2.He—Helium

3.Li—Lithium

4.Be—Beryllium

5.B—Boron

6.C—Carbon

7.N—Nitrogen

8.O—Oxygen

9.F—Fluorine

10.Ne—Neon

11.Na—Sodium

12.Mg—Magnesium

13.Al—Aluminum

14.Si—Silicon

15.P—Phosphorus

16.S—Sulfur

17.Cl—Chlorine

18.Ar—Argon

19.K—Potassium

20.Ca—Calcium