Question

what is electron affinity of an atom ​

Answer 1

Answer:

Electron affinity is the energy change that results from adding an electron to a gaseous atom. For example, when a fluorine atom in the gaseous state gains an electron to form F⁻(g), the associated energy change is -328 kJ/mol.

Explanation:

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Answer 2

The electron affinity of an element is the energy liberated when an electron is added to neutral gaseous atom.