Question

Summarise the rules for writing of distribution of electrons in various shells for the first eighteen elements. ​

Answer 1

The rules for distribution of electrons in various shells are:​

1. The maximum number of electrons present in a shell is given by the formula 2n2, where 'n' is the orbit.​

2. The maximum number of electrons that can be accommodated in the outermost orbit is 8.​

3. Electrons are not accommodated in a new shell, unless the inner shells are filled. That is, the shells are filled in a step-wise manner.​