Chemistry, asked by BORNTOLIVE, 1 year ago

the first enthalpy of MG is higher than AI.why

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Answered by Answers4u

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The First electron gain enthalpy of Mg is higher than that of Al because -

The electronic configuration of Mg is 3s2 and of Aluminium is 3s2 3p1.

Thus removing one electron from 3p shell is easier than removing one electron from 3s shell as it a stable configuration.

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