Question

how would the tendency of gain electrons vary across a period?​

Answer 1

Explanation:

The tendency to gain electron increases as we go from left to right in a period because the effective nuclear charge increases and the atomic radius decreases. So the protons hold the electrons more tightly thus the loss of electrons become difficult

Answer 2

The tendency to gain electronincreases as we go from left toright in a periodbecause the effective nuclear charge increases and the atomic radius decreases. So the protons hold the electronsmore tightly thus