Chemistry-
General
Easy
Question
Which one of the following arrangements represents the correct order of electron gain enthalpy (with negative sign) of the given atomic species.
- (a)
- (c)
The correct answer is:
Halogens have very high electron affinity. It may be rated that the electron affinity of fluorine is unexpectedly low 
. This may perhaps be due to small size of F atom. The value of electron gain enthalpies for 
and O are respectively 349, 333, 200 & 142 KJ / mol hence correct order is 
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