If the ionisation energy and electron affinity of an element are 275 and 86 Kcals "mol"^(-1) respectively, the electronegativity of that element on Mulliken scale is

If the ionisation energy and electron affinity of an element are 275 a

1.	If the ionisation energy and electron affinity of an element are 275 and 86 Kcals "mol"^(-1) respectively, the electronegativity of that element on Mulliken scale is
Answer» 2.8 0 4 1.9 Answer :A