Question

Would you expect the second electron gain enthalpy of O as positive, more negative or less negative than the first? Justify your answer.

What is the basic difference between the terms electron gain enthalpy and electronegativity?

How would you react to the statement that the electronegativity of N on Pauling scale is 3.0 in all the nitrogen compounds?

Assertion (A): The value of electron gain enthalpy decrease while moving left to right in a period. Reason (R): The electron gain enthalpy is the energy which released hence it represented with negative sign.