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Which of the following will ave lowest e...

Which of the following will ave lowest electron affinity?

A

Oxygen

B

Fluorine

C

Nitrogen

D

Carbon

Text Solution

Verified by Experts

The correct Answer is:
C
EA increases (more negative value) along the period `(rarr)`. But there is an exception in EA's value of N and C
Therefore, EA's of N (less negative) `gt C` (more negative) due to half-filled p-robitals in N. Addition of electron will be difficult . So, less energy is released in comparison to N.
Increasing order of EA is from less negative to more negative.
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