Math, asked by Harshikarnavat9365, 1 year ago

Why o has less ionisation enthalpy than n?

Answers

Answered by 07161020
6
Hey there,

IP increase as we move from left to right in a period, But O and N is an exception because=
1s²,2s²,2p⁴ is the electronic configuration of O.
1s²,2s²,2p³ is the electronic configuration of N.

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If you will notice the last orbital O has 2p⁴ and N has 2p³. Since the maximum capacity of p orbital is 6. So 2p³ is a half filled orbital.
And according to stability
Full filled>Half filled>Randomly filled

Though O has more electrons in valence orbital but N is more stable because of having a half filled valence orbital and hence have more IP because IP is directly proportional to stability.

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