1.

The increasing order of electron affinity of the electronic configuration of element is : (I) 1s^(2)2s^(2)2p^(6)3s^(2)3p^(5) (II) 1s^(2)2s^(2)2p^(3) (III) 1s^(2)2s^(2)2p^(5) (I) 1s^(2)2s^(2)2p^(6)3s^(1)

Answer»

`II LT IV lt III lt I`
`I lt II lt III lt IV`
`I lt III lt II lt IV`
`IV lt III lt II lt I`

ANSWER :A


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