Question

What are the atomic elements all 20 elements

Answer 1

1.Hydrogen
2.Helium
3.Lithium
4.Berillium
5.Boron
6.Carbon
7.Nitrogen
8.Oxygen
9.Flourine
10.Neon
11.Sodium
12.Magnesium
13.Aluminium
14.Silicon
15.Phospurus
16.Sulphur
17.Chlorine
18.Argon
19.Pottasium
20. Calcium

Answer 2

$\huge\red{Answer}$

ChlorineCl18ArgonAr19PotassiumK20CalciumCa