Solution:
“Electronegativity refers to an atom’s ability to attract a bond pair of electrons towards itself in a chemical compound.”
| Sr. No | Electronegativity | Electron affinity |
| 1 | A tendency to attract the shared pairs of electrons for an atom that is in a chemical compound is its electronegativity. | A tendency to gain electrons for an isolated gaseous atom is its electron gain enthalpy. |
| 2 | It varies according to the element with which it is bounded. | It does not vary according to the element with which it is bonded. |
| 3 | It is not constant for any element. | It is constant for an element. |
| 4 | It is not a measurable quantity. | It is a measurable quantity. |