Question

how will the tendency to gain electrons changes as we go Left to right across a period?

Answer 1

The tendency to gain electrons(electronegativity) decreases as the atomic radius increases due to the increase in number of shells.This results in decrease in effective nuclear charge.Hence it is easy to loose anelectron instead of gaining.

Answer 2

Answer:

Explanation:

Tendency to gain electrons increases from left

to right in a period because atomic size goes on

decreasing and effective nuclear charge increases.