JEE Main Chemistry question

Aufbau principle does not give the correct arrangement of filling of atomic orbitals in **[J & K CET 2003]**

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

Answer: (D)

Solution

Chromium and copper are the classic exceptions to the simple aufbau-predicted filling: both adopt a half-filled or fully-filled -subshell with only one

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Question ID VK-132314