electron affinity

Answer 1

Electron affinity refers to the amount of energy released or absorbed when an atom or molecule gains an electron. It is a measure of the ability of an atom or molecule to attract and hold an additional electron.

Atoms or molecules with a high electron affinity have a strong attraction for electrons and readily gain an electron. Conversely, those with a low electron affinity have a weaker attraction for electrons and are less likely to gain an electron.

Electron affinity is an important property in understanding chemical reactions and the behavior of atoms and molecules. It can influence the stability and reactivity of chemical compounds and is often used to predict the formation of ions and the occurrence of certain chemical reactions.

The electron affinity of an atom or molecule can be affected by various factors, including the atomic or molecular structure, the presence of other atoms or molecules, and the atomic or molecular size. Additionally, electron affinity generally increases across a period in the periodic table from left to right and decreases down a group.