Question

what is the tendency to gain electron

Answer 1

tendency to gain electrons is known as "Electro Negativity"
It shows by Non-metals as they form negative ions by gaining or accepting electrons.



thnx
Hopeit helps you
Please mark the answer as Brainliest.

Answer 2

Ne has the lowest tendency to gain electrons because its outer energy level is full and there is no room for an additional electron. O has the greatest tendency to gain electrons because it has a higher effective nuclear charge than C (and both use the same number of energy levels).