The electron configuration of carbon atom in its excited state is?

A. 1s²2s²2px²2py⁰
A. 1s²2s²2px¹2py¹
C. 1s²2s¹2px¹2py¹2pz¹
D. 1s¹2s²2px¹2py¹

Correct Answer:

Option C – 1s²2s¹2px¹2py¹2pz¹

Explanation

– So any electron configuration in which the last electron (again, the valence electron) is in a higher energy orbital, this element is said to be in an excited state.

– When a carbon atom becomes excited by absorbing energy, one of its 2s electrons is promoted into the 2p sublevel.