Question

what do you mean by metallic character of an element? how does it vary as we go down a group ?give reason for this variation...plz answer asap

Answer 1

Metallic character decreases as youmove across a period in the periodic table from left to right. This occurs as atoms more readily accept electrons to fill a valence shell than lose them to remove the unfilled shell. Metallic character increases as you movedown an element group in the periodic table.
Each row on the periodic table represents a new energy level/electron shell. So as you go down the groupthere are more energy levels, increasing the atomic radius. The first electron to react will be on the outer shell. The reactivity increases downthe group from Mg to Ba.

Answer 2

Answer:

Metallic character of an element means the capacity of elements to lose electron of the outer most shell to attain stability. It vary as we go down in a group as the metallic character or electropositive character increase.

Reason: As we move down a group in the periodic table, atomic size gradually increases. As a result, the force of attraction between the nucleus and the valence electrons decreases. Therefore, the tendency of the element to lose electrons to form positive ions increase and hence the metallic or the electropositive character increase as we move down the group. Increase in atomic size predominates the increase in nuclear charge.

hope this helps you.....:)