Among chalcogens, which has highest eletronegativity and which has highest electron gain enthalpy ?

Which has highest electron affinity?

The halogen which has highest electron gain enthalpy is

Which of the following has highest electron gain enthalpy ?

Which halogen has the highest electron gain enthalpy and which halogen has the highest Electronegativity?

Which halogen has highest value of electron gain enthalpy?

Name the element which has highest electron affinity or electron gain enthalpy.