The metallic bond in magnesium is stronger than that in calcium because magnesium has a?

A. larger atomic size.
B. smaller atomic size
C. greater number of valence electrons
D. lower melting point

Correct Answer:

Option B – smaller atomic size

Explanation

– Magnessium has a stronger metallic bond than calcium because it has smaller atomic radius.

– Atomic radius decreases across a period and increases down a group.