Write the basic differences between electronegativity and electron gain enthalpy

Question

Write any two differences

Answer 1

Electronegativity is a the tendency of an atom to attract and electron(s) towards itself.

 

Electron gain enthalpy (electron affinity) is the energy released/absorbed by an isolated gaseous atom when an electron is added to it.

 

Electronegativity is a theoretical construct and does not have units.

 

Electron affinity is "real" and is measured usually in joules.