Question

(ii) Amount of energy released while converting an atom into ion by addition of electron​

Answer 1

✯Electron affinity of an atom is the amount of energy released when an electron is added to a neutral atom to form a negative ion. It increases across a period and decreases going down the group✯

Answer 2

Answer:

WHEN ELECTRONS ARE ADDED TO AN ATOM, THE INCREASED NEGATIVE CHARGE PUTS STRESS ON THE ELECTRONS ALREADY THERE, CAUSING ENERGY TO BE RELEASED. WHEN ELECTRONS ARE REMOVED FROM AN ATOM, THAT PROCESS REQUIRE ENERGY TO PULL THE ELECTRON AWAY FROM THE NUCLEUS. ADDITION OF AN ELECTRON RELEASES ENERGY FROM THE PROCESS.