Question

The first ionisation energy of aluminium is slightly lower
than that of magnesium because​

Answer 1

Answer:

The first ionisation energy of magnesium is less than that of aluminium. (1) Removal of an electron will disrupt the stable completely-filled 3s sub-shell of magnesium. (2) The 3p electron of aluminium is further from the nucleus compared to the 3s electrons of magnesium.

Explanation:

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Answer 2

Answer:

The first ionisation energy of magnesium is less than that of aluminium. (1) Removal of an electron will disrupt the stable completely-filled 3s sub-shell of magnesium. (2) The 3p electron of aluminium is further from the nucleus compared to the 3s electrons of magnesium

Explanation:

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