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Stability of Fully Filled and Half Filled Orbitals

The electroni...

Question

The electronic configuration of chromium is :

[Ar]

3 d^{6} 4 s^{0}

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[Ar]

3 d^{5} 4 s^{1}

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[Ar]

3 d^{4} 4 s^{2}

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[Ar]

3 d^{3} 4 s^{2} 4 p^{1}

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Solution

The correct option is A [Ar] $3 d^{5} 4 s^{1}$
The electronic configuration of chromium(atomic no. is 24) is $[A r] 3 d^{5} 4 s^{1}$ .

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