Question

Electron Affinity is maximum in ______.

Options

• Mg

• Ar

• Li

• Br

Answer 1

Electron Affinity is maximum in Br.

Explanation:

From left to right in the periodic table, electron affinity generally increases because atoms become more prone or unstable to gaining an electron in order to achieve a stable electronic configuration, such as that of noble gases. Because they need one electron to complete their octet, halogens such as bromine (Br) have an excessively high electron affinity. Metals like magnesium (Mg) and lithium (Li) have lesser propensities to lose electrons than noble gases like argon (Ar), which have entire outer shells.