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Multi-Electron Configurations and Orbital Diagrams

The number of...

Question

The number of unpaired electrons in the $F e^{3 +}$ ion (Atomic no. = 26) is:

5

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6

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2

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8

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Solution

The correct option is B $5$
Electronic configuration $F e^{3 +} : [A r] 3 d^{5}$
Hence it has 5 unpaired electrons.

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[C o F_{6}]^{3 -}

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[C o F_{6}]^{3 -}

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\sqrt{35}

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