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Which of the following element has the h...

Which of the following element has the highest ionisation enregy ?

A

Boron

B

carbon

C

nitrogen

D

oxygen

Text Solution

Verified by Experts

The correct Answer is:
C
`N : 1s^(2) 2s^(2) 2p^(3)`
From left to right in a period, the first ionisation potential increases. But in nitrogen, half-filled stable configuration is present, therefore its ionisation potential is greater than that of oxygen.
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