Mht CetD And F Block ElementsMHT CET 2026 16th April Morning ShiftMCQ+1 / -02026What is the observed electronic configuration of Cu ?A$[\text{Ar}]\ 3d^9\ 4s^2$B$[\text{Ar}]\ 3d^{10}\ 4s^1$C$[\text{Ar}]\ 3d^5\ 4s^2$D$[\text{Ar}]\ 3d^6\ 4s^2$Check AnswerClear SelectionReveal AnswerShow Explanation
