Question

The electronic configuration of an element is $1s^2,2s^2,2p^6,3s^2,3p^6,3d^3,4s^1$. This represents its

• A. Excited state
• B. Ground state
• C. Cationic form
• D. Anionic form

Answer 1

Answer: (C)

Cationic form

Electronic configuration belongs to d-block.

Here d block is neither half-filled nor fulfilled so s orbital of an element must have 2 electrons, but here in s orbital, only one electron is present. It means the element is in a cationic form with oxidation no +1.