Electronic Configuration

It is defined as the arrangement or distribution of electrons in the respective shells of an atom. The electronic configuration is guided by the formula: 2n²

Maximum electron holding capacity

The formula 2n² provides information on the maximum electron holding capacity of respective shells

1^st Shell can accommodate TWO electrons

n=1

2n²

2 x 1² = 2

2^nd Shell can accommodate EIGHT electrons

n=2

2n²

2 x 2² = 8

3^rd Shell can accommodate EIGHTEEN electrons

n=3

2n²

2 x 3²=18

4^th Shell can accommodate THIRTY TWO electrons

n=4

2n²

2 x 4²= 32