If I and E are ionisation energy and electron affinity of an element in kJ "mole"^(-1) electronegativity is given as

If I and E are ionisation energy and electron affinity of an element i

1.	If I and E are ionisation energy and electron affinity of an element in kJ "mole"^(-1) electronegativity is given as
Answer» `(I+E)/(2)` `(I+E)/(5.6)` `(I+E)/(129)` `(I+E)/(544)` ANSWER :D