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JEE Mains · Chemistry · STD 11 - 3. Classification of elements and periodicity in properties
Which is the correct order of second ionization potential of \(C, N, O\) and \(F\) in the following ?
- A \(O> N > F > C\)
- B \(O> F > N > C\)
- C \(F > O> N > C\)
- D \(C > N > O> F\)
Answer & Solution
Correct Answer
(B) \(O> F > N > C\)
Step-by-step Solution
Detailed explanation
The second ionization potential means removal of electron from cation \(C^+ = 1s^2\,2s^2\,2p^1,\,N^+ = 1s^2\,2s^2\,2p^2\) \(O^+ = 1s^2\,2s^2\,2p^3,\,F^+ = 1s^2\,2s^2\,2p^4\) Therefore \(O > F > N > C\)
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