Electronegativity (EN) is a crucial property for predicting the behavior of elements in chemical bon — Periodic Table and Periodicity Chemistry Question

💡 Solution & Explanation

Statement A is false; electronegativity is a relative, qualitative property in bonded states, unlike IE or EA which are absolute measurable thermodynamic quantities of isolated atoms. B is correct (e.g., $Fe^{3+}$ pulls electrons harder than $Fe^{2+}$). C is correct ($sp$ > $sp^2$ > $sp^3$ because s-orbitals are closer to the nucleus). D is correct; Pauling used bond energies to establish his scale.