What is the relationship between the first ionisation enthaplies and metallic properties?
Higher the value of ionisation enthalpy of an atom, greater will be its electronegative and non-metallic character.
Among the elements Li, K, Ca, S and Kr, which one has the highest first ionisation enthalpy and which one has the lowest first ionisation enthalpy?
For each of the following pairs state which one has greater ionisation enthalpy:
(i) I, I- (ii) Br, K.