Question

what is the basic difference between the terms electron gain enthalpy and electronegativity

Answer 1

Electron gain enthalpy refers to tendency of an isolated gaseous atom to accept an additional electron toform a negative ion. Whereas electronegativity refers to tendency of the atom of an element to attract shared pair of electrons towards it in a covalent bond.

Answer 2

Electronegativity is a chemical property that says how well an atom can attract electrons towards itself. ... The electron affinity of an atom or molecule is defined as the amount of energy released when an electron is added to a neutral atom or molecule in the gaseous state to form a negative ion.