JEE CHEMISTRY MCQ: STRUCTURE OF ATOM

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Total number of electrons having

n + l = 3\,in\,Cr\left( {z = 24} \right)

atom in its ground state is

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Correct option: A

Option A (8) is correct because the electron configuration of Cr is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d⁵, and the combinations with n + l = 3 are 2p (6 electrons) and 3s (2 electrons), totaling 8 electrons.

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