Question

1 to 20 element with their symbol

Answer 1

The First 20 elements in the periodic table. Here they are:

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