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Coose the incorrect order of the propert...

Coose the incorrect order of the property given below :

A

`N^(3) lt O^(2)` inonic radius

B

`N gt O : 1^(st)` ionisation energy

C

`N gt O : 2^(nd)` ionisation energy

D

`N gt O` : Electron affinity

Text Solution

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The correct Answer is:
A, C, D
`N rarr 1s^(2) 2s^(2) 2p^(3)`
`O rarr 1s^(2) 2s^(2) 2p^(4)`
Half filled configuration `rarr` more stable, required more energy to remove the electron as compare to O- atom
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