Q 2712023830.    

Assertion : Manganese (atomic number `25`) has a less favourable electron affinity than its neighbours on either side because

Reason : The manganese has stable, `[Ar]^(18) 3d^5 4s^2` electrons configuration.

A Both A and R individually true and R is the correct explanation of A
B Both A and R are individually true but R is not the correct explanation of A
C A is true but R is false
D A is false but R is true

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