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Question

Chemistry Question on Structure of atom

The electronic configuration of Cr3+Cr^{3+} is

A

[Ar]3d54s1[Ar]3d^54s^1

B

[Ar]3d24s1[Ar]3d^24s^1

C

[Ar]3d34s∘[Ar]3d^34s^{\circ}

D

[Ar]3d44s2[Ar]3d^44s^2

Answer

[Ar]3d34s∘[Ar]3d^34s^{\circ}

Explanation

Solution

Cr(24):[Ar]3d54s1Cr (24):[ Ar ] 3 d^{5} 4 s^{1} Cr3+:[Ar]3d34s∘Cr ^{3+}:[ Ar ] 3 d^{3} 4 s^{\circ}