Question

bigger the atomic volume more metallic character explain​

Answer 1

Metallic character increases as you move down a group because the atomic size is increasing. When the atomic size increases, the outer shells are farther away. ... Electron shielding causes the atomic radius to increase thus the outer electrons ionizes more readily than electrons in smaller atoms.

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Answer 2

Because when we go up to down there is change in atomic number , valency , atomic size, atomic radius and also there physical property.