Practice question

MCQ

Question

What is the electronic configuration of Cr (Z = 24) in its ground state?

Options

Choose one · Correct answer highlighted

[Ar] 3d44s2 [Ar] 3d54s1 Correct [Ar] 3d6 [Ar] 3d34s24p1

Explanation

Cr has an anomalous configuration due to the stability of half-filled d orbitals: [Ar] 3d 5 4s 1 .

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