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- The electron gain enthalpies of halogens in kJ/mol are as given below. <img alt="F=-332\:,\:Cl=-349\:,\:Br=-324\:,\:I=-295" src="https://learn.careers360.com/latex-image/?F%3D-332%5C%3A%2
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The electron gain enthalpies of halogens in kJ/mol are as given below.
The less negative value for as compared to that of
is due to :
strong electron-electron repulsions in the compact of
.
weak electron-electron repulsions in the compact of
smaller electronegativity value of than
(A) and (B) both
Answers (1)
Ionization enthalpy -
It is defined as the minimum amount of energy required to remove the outer most shell electron from an isolated gaseous atom (X) to form the gaseous ion.
- wherein
Successive Ionization enthalpies -
The ionisation enthalpies to remove first, second, third etc.Electrons from an isolated gaseous atom are called successive ionisation enthalpies.
- wherein
Due to small of atom, the electron-electron repulsions in compact
sub shell are large and hence the incoming electron is not accepted with the same ease as is the case with
(less electron - electron repulsions)
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