Electronic configuration of an element is
`1s^2  2s^2 2p^6 3s^2 3p^6 3d^5 4s^1`. It belongs to 

Options

A. excited state
B. ground state
C. cationic form
D. anionic form

Answer

B, C

Explanation

`3d^5 4s^2` is ground state electronic configuration
`3d^5 4s^1` is cationic form electronic configuration