Question

Read the following and answer any four questions from 16 (i) to 16(v).

Metallic Character

The ability of an atom to donate electrons and form positive ion (cation) isknown as

electropositivity or metallic character. Down the group, metalliccharacter increases due to

increase in atomic size and across the period, fromleft to right electropositivity decreases

due to decrease in atomic size.

Non-Metallic Character

The ability of an atom to accept electrons to form a negative ion (anion) iscalled non-

metallic character or electronegativity. The elements having highelectro-negativity have a

higher tendency to gain electrons and form anion.

Down the group, electronegativity decreases due to increase in atomic size andacross the

period, from left to right electronegativity increases due to decreasein atomic size.​

Answer 1

Answer:

Metallic character tends to increase on going down the group because of low ionization energy,electron affinity so on moving down in group increases. Electropositivity is the tendency to donate electrons forming positive ions so it increases on going down the group with metallic character.