Question

the elements in which group in the periodic table release the most energy by gaining an electron? choose between groups ia, iia, iiia, iva, va, via, viia, or viii a. short answer type answer here

Explanation:

Electron affinity is the energy change when an atom gains an electron. Group VIIA (halogens) has a high electron - affinity. Halogens have \(7\) valence electrons. By gaining one electron, they achieve a stable noble - gas electron configuration. This process releases a large amount of energy. Group VIII A (noble gases) have a stable electron configuration and do not tend to gain electrons. Groups I A - III A are metals and tend to lose electrons. Groups IV A - VI A have lower electron - affinities compared to Group VII A.

Answer:

VIIA