The element with positive electron gain enthalpy is

In Group 18, the element with highest electron gain enthalpy is

Which pair of elements shows positive elecron gain enthalpy ?

Which pair of elements shows positive elecron gain enthalpy ?

Which among the following elements will have a positive electron gain enthalpy ? B, C, N, O.

Which among the following elements will have a positive electron gain enthalpy ? B, C, N, O.

Assertion:For the elements O or F,the electron gain enthalpy is less negative than that of the succeeding element. Reason:Electron gain enthalpy becomes less negative as we go down a group.

Assertion:For the elements O or F,the electron gain enthalpy is less negative than that of the succeeding element. Reason:Electron gain enthalpy becomes less negative as we go down a group.