Question

First 20 elements with periodic table

Answer 1

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

Answer 2

Explanation:

Hydrogen - H

Helium - He

Lithium - Li

Beryllium - Be

Boron - B

Carbon - C

Nitrogen - N

Oxygen - O

Fluorine - F

Neon - Ne

Sodium - Na

Magnesium - Mg

Aluminium - Al

Silicon - Si

phosphorus - P

Sulphur - S

Chlorine - Cl

Argon - Ar

Potassium - K

Calcium - Ca