Question

How does electron affinity change when we move from left to right in a period in the periodic table ​

Answer 1

Answer:

Electron affinity increases upward for the groups and from left to right across periods of a periodic table because the electrons added to energy levels become closer to the nucleus, thus a stronger attraction between the nucleus and its electrons.

Explanation:

Answer 2

Answer:

Electron affinity increases on moving left to right across a period.

Explanation:

Electron affinity is the amount of energy released by an atom when it becomes an anion.

Mostly, non-metals which lie on the right side of the periodic table form anion by taking up an electron. On the hand, metallic elements on the left become positively charged ions after donating an electron.