Question

An atom with high electronegativity has
i. Small size
ii. Low electron affinity
iii. Low ionisation energy
iv. High non-metallic character

[1 mark]

• A. (i) and (ii)
• B. (ii) and (iv)
• C. (i), (iii), and (iv)
• D. (i) and (iv)

Answer 1

The correct option is D (i) and (iv)

Electronegativity is the tendency of an atom to attract a shared pair of electrons towards itself.

Electronegativity decreases down the group and increases on moving from left to right across a period.
The size of atoms decreases on moving from left to right across a period and increases down the group. So, electronegative elements have small size.

The metallic character of an element depends on the ease of removal of electrons. An electronegative element has a tendency to generally gain electrons. So, electronegative elements show a high non-metallic character.