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Statement-1:Manganese (atomic number 25)...

Statement-1:Manganese (atomic number 25) has a less favourable electron affinity than its neighbours on either side because
Statement-2:The magnanese has stable ,`[Ar]^(18) 3d^5 4s^2` electrons configuration.

A

Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1

B

Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1

C

Statement-1 is True, Statement-2 is False.

D

Statement-1 is False, Statement-2 is True.

Text Solution

Verified by Experts

The correct Answer is:
A
Both statements are true and Statement-2 is the true explanation of the Statement-1. The magnitude of an element's electron affinity depends on the element's valence shell electrons configuration.
`._25 Mn=[Ar]^18 3d^5 4s^2` configuration
`._24 Cr=[Ar]^18 3d^5 4s^1` configuration
`._26 Fe=[Ar]^18 3d^6 4s^2` configuration
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