MHT CET 2024 Chemistry question

Chemistry Classification of Elements and Periodicity in Properties MHT CET 2024

Which pair of elements from following has half filled d-orbital in observed electronic configuration?

(A)Cu and Mn
(B)Mn and CrCorrect
(C)Zn and Co
(D)Cu and Zn

Answer: (B)

Solution

Half-filled d subshell means . Observed ground state configurations: Cr is (anomalous: one 4s electron shifts to give a half-filled 3d), Mn is , Co is , Cu is

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Question ID VK-093394