If the ionization enthalpy and electron gain enthalpy of an element are 275 and 86 kcal mol-1 respec — Periodic Table and Periodicity Chemistry Question
Question
If the ionization enthalpy and electron gain enthalpy of an element are 275 and 86 kcal mol-1 respectively, then the electronegativity of the element on the Pauling scale is :
Answer: A
💡 Solution & Explanation
I.E. + E.A. = 275 + 86 = 361 kcal mol-1 = 361 * 4.184 = 1510.42 kJ mol-1. Electronegativity = 1510.42 / 540 = 2.797 \approx 2.8
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