The Reaction of Lithium with Water Is Much Slower Than

The reaction of lithium with water is much slower than that of caesium, but the hydration enthalpy is higher because. Please select all that apply.

A) Cs reacts with water to form an insoluble oxide not a soluble hydroxide.
B) Lithium has a much larger charge to radius ratio than caesium and attracts more water molecules on hydration
C) Caesium has a much larger charge to radius ratio than lithium and attracts more water molecules on hydration
D) The heat of the reaction is enough to melt the caesium metal as it has a low melting point.