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Energy is released when an electron is a...

Energy is released when an electron is added to neutral isolated gaseous atom in its ground state to give monoanion and this is known as `EA`, or `Delta_(eg)H_(1)^(ɵ)`. The greater the amount of energy released the greater is the `EA`. `EA` is expressed in `eV a"atom"^(-1)` or `kcal or K\kJ mol^(-1)`.
`EA` values of `N` and `P` are exceptionally low, because

A

Both `N` and `P` have half-filled `p`-orbitals in the valence shell.

B

The atom is more stable than the corresponding anoin.

C

The electronic configuration of the anoin `N^(ɵ)` and `P^(ɵ)` is relatively more stable than the corresponding atom.

D

Both (b) and C.

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The correct Answer is:
A
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