Question

Define electronegativity. How does it differ from electron gain enthalpy?

Answer 1

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. The Pauling scale is the most commonly used. Fluorine (the most electronegative element) is assigned a value of 4.0, and values range down to caesium and francium which are the least electronegative at 0.7.

Answer 2

electronegativity is the tendency of atom from which attract other atom bonding electrons. but electron gain enthalpy is energy released by isolated gaseous atom when it gain an electron. also electron gain enthalpy have unit and dimension but electronegativity have no unit and dimension.