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The metallic character of __________ is less than that of alkaline earth metals.

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in Chemistry – Class 11 by (148k points)
The metallic character of __________ is less than that of alkaline earth metals.

(a) Boron family

(b) Alkali metals

(c) Magnesium

(d) Hydrogen

This question was posed to me in homework.

I'm obligated to ask this question of p-Block Elements topic in division p-Block Elements of Chemistry – Class 11

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Right choice is (a) Boron family

Easiest explanation: The elements of the Boron family are less electropositive than the alkaline earth metals due to their smaller size and higher ionization enthalpies. On moving down the group, the electropositive character first increases from Boron to aluminium and then decreases from gallium so thallium due to the presence of d and f orbitals which causes poor shielding.

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