The second electron gain enthalpies (in kJ `mol^(-1)`) of oxygen and sulphur respectively are:

Second electron gain enthalpy Is ͟ ͟ ͟͟͟

The second electron gain enthalpy of oxygen is

The electron gain enthalpy values (in kJ mol^(-1) ) of three halogens, X, Y and Z are respectively -349, -333 and -325. Then X, Y and Z are respectively

The correct order of electron gain enthalpy (in kJ/mole) is

The correct order of electron gain enthalpy (in kJ/mole) is

The electron gain enthalpy (in kJ/mole) of Oxygen, Sulphur,Selenium and Tellurium respectively are :

The electron gain enthalpy (in kJ/mole) of Oxygen, Sulphur,Selenium and Tellurium respectively are :

The electron gain enthalpy (in kJ/mole) of F, O, N and C respectively are :

The electron gain enthalpy (in kJ/mole) of F, O, N and C respectively are :