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  2. In Which Of The Following Pairs The Outermost Electronic Configuration Will Be The Same
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In which of the following pairs, the outermost electronic configuration will be the same?

a. Fe2+ and Co+

b. Cr+ and Mn2+

c. Ni2+ and Cu+

d. V2+ and Cr+

Answer: (b)

Cr+ → Ar]3d5

Mn2+ → [Ar]3d5

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