The table below gives estimates of the enthalpy change for each of the elements undergoing the reaction with water: There is no overall trend in the overall reaction enthalpy, but each of the componen...The table below gives estimates of the enthalpy change for each of the elements undergoing the reaction with water: There is no overall trend in the overall reaction enthalpy, but each of the component input enthalpies (in which energy must be supplied) decreases down the group, while the hydration enthalpies increase: This decreases as the size of the atoms and the length of the metallic bond increase.
The table below gives estimates of the enthalpy change for each of the elements undergoing the reaction with water: There is no overall trend in the overall reaction enthalpy, but each of the componen...The table below gives estimates of the enthalpy change for each of the elements undergoing the reaction with water: There is no overall trend in the overall reaction enthalpy, but each of the component input enthalpies (in which energy must be supplied) decreases down the group, while the hydration enthalpies increase: This decreases as the size of the atoms and the length of the metallic bond increase.