Question

An element having the atomic number 38 belongs to the

• A. s - block
• B. p - block
• C. d - block
• D. f - block

Answer 1

The correct option is A s - block

The electronic configuration of element with atomic no. 38 is $\left[Kr\right]5s^2$.
Since the last electron is filled in the $s-subshell$, the element belongs to the s-block.