Chemistry, asked by rudrabhadouriya385, 1 month ago

Why the first Ionisation enthalpy of Na is less than Mg but 2nd lonisation enthalpy of Mg is less than Na? ​

Answers

Answered by sunitavende753
3

Answer:

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Explanation:

Here, the first electron in both sodium and magnesium has to be removed from 3s orbital but the effective nuclear charge of sodium is less than that of magnesium. Therefore, first ionization enthalpy of sodium is less than that of magnesium.

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