Discussion Forum : Periodic Classification Of Elements
Question -
The electron affinity values for the halogens show the following trend:
Answer: Option A
:
A
In a group of non-metals, electrongain enthalpy of the 2nd element is maximum. Among halogens, chlorine has the highest election affinity.
We would expect fluorine would have the highest electron affinity because of being a halogen and very small size, but its so small that it leads to interelectronic repulsions and the overall energy released when an electron is added is reduced.
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:
A
In a group of non-metals, electrongain enthalpy of the 2nd element is maximum. Among halogens, chlorine has the highest election affinity.
We would expect fluorine would have the highest electron affinity because of being a halogen and very small size, but its so small that it leads to interelectronic repulsions and the overall energy released when an electron is added is reduced.
Was this answer helpful ?
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