Why second electron gain enthalpy is positive in sulphur?
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sulphur has electronic configuration of;(Ar) 3s2 3p4
so 1st electron gain enthalpy is low (unstable)
but for 2nd electron gain enthalpy is positive because more energy is needed to remove an electron from fully filled or half filled electronic configuration.
so 1st electron gain enthalpy is low (unstable)
but for 2nd electron gain enthalpy is positive because more energy is needed to remove an electron from fully filled or half filled electronic configuration.
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