Question

noble gases are positive. How
The second period element for example 'F' has less electron gain enthalpy
than the third period element of the same group for example C”. Why?​

Answer 1

Answer:

Due to the stable configuration, they do not accept an electron and hence they have large positive electron gain enthalpy.

An electron has to enter the next higher principal quantum level which leads to a very unstable electronic configuration.

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