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A M^(+2) ion derved fromn a metal in th...

A `M^(+2) ` ion derved fromn a metal in the first transition metal series has four electrons in 3d subshell , what element may m be:

A

S

B

Cr

C

Mn

D

Se

Text Solution

Verified by Experts

The correct Answer is:
b

`Cr to [Ar ] 4s^(1) 3d^(5) `
` Cr ^(2+) to [Ar] 4s^(0) 3d^(4)`
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GRB PUBLICATION-QUANTUM NUMBERS AND GENERAL CHEMISTRY-D.
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  6. Assuming hund's Rule is not necesssarily follwed for a d^(5) configura...

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