Question

List of 20 elements with their electronic configuration

Answer 1

1) Hydrogen1s1
2) Helium 1s21
3) Lithium 2s1
4Beryllium 2s2
5 Boron 2s22p1
6 Carbon 2s22p2
7 Nitrogen 2s22p3
8 Oxygen 2s22p4
9 Fluorine 2s22p5
10 Neon 2s22p6
11 Sodium 3s1
12 Magnesium 3s2
13 Aluminum 3s23p1
14 Silicon 3s23p2
15 Phosphorus 3s23p3
16 Sulfur 3s23p4
17 Chlorine 3s23p5
18 Argon 3s23p6
19 Potassium 4s1
20 Calcium 4s2