Question

What happens to the non-metallic nature as we move from left to right in groups?

(a) Increases

(b) Decreases

(c) Remains constant

(d) Irregular

The question was posed to me during an interview for a job.

This is a very interesting question from Electronic Configurations and Types of Elements: s, p, d and f Blocks topic in division Classification of Elements and Periodicity in Properties of Chemistry – Class 11

Answer 1

The correct option is (a) Increases

The best explanation: Non-metallic nature is defined as a tendency to gain electrons thus having high negative electron gain enthalpies, but the 18th group has no reactivity. So the non-metallic nature increases from left to right in groups leaving noble gases.