Question

outer electronic configuration of a few element are given explain the period,groups and block to which they below Ne​

Answer 1

Explanation:

Prediction of Block ⟶ The orbital out of s,p,d and f which receives the last electron represents the block of an element.

Prediction of Group ⟶ The group prediction occurs with the help of block as:-

(2) For d block: Group Number = Number of e− in (n−1)d subshell + number of e− in ns subshell.