Assertion- The first ionization enthalpy of aluminium is lower than that of magnesium.
Reason- Atomic radius of aluminium is smaller than that of magnesium.
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B. 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. Mark me brainlest plsplsplsplsplsplspslspls
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