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The correct order of ionisation energy for comparing carbon, nitrogen and oxygen

The correct order of ionisation energy for comparing carbon, nitrogen and oxygen is

Options

(a) CO
(b) C>N (c) C>N>O
(d) C>N

Correct Answer:

CO

Explanation:

Nitreogen has more ionisation potential thaon carbon and oxygen, because, its outermost orbit is half-filled so, it is more stable and order is CO.

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