Question

what is electron gain enthalpy order of 18th group​

Answer 1

Answer:

Electron gain enthalpy of noble gases:

Members of the group have eight valence electrons (except helium). Thus, they exhibit stable octet or duplet configuration. Hence, elements of group 18 exhibit very large positive values of electron gain enthalpy.

Answer 2

Explanation:

Electron gain enthalpy of noble gases:

Members of the group have eight valence electrons (except helium). Thus, they exhibit stable octet or duplet configuration. Hence, elements of group 18 exhibit very large positive values of electron gain enthalpy

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