Question

Electronic configuration of Cu³⁺ is ____________.

Options

• [Ar] 3d¹

• [Ar] 3d⁸

• [Ar] 3d⁰

• [Ar] 3d²

Answer 1

Electronic configuration of Cu³⁺ is [Ar] 3d⁸.

Explanation:

Cu has an atomic number of 29 with an electronic configuration of [Ar] 3d¹⁰ 4s¹. On removal of 3 electrons to get Cu³⁺, electronic configuration changes to [Ar] 3d⁸.