The patterns observed in Group 2 can be used to forecast the properties of radium and its compounds. Which statement is correct?
- ARadium has the highest second ionisation energy of the elements in Group 2.
- BRadium hydroxide is the least soluble of the hydroxides of the elements in Group 2.
- CRadium carbonate has the lowest thermal stability of the carbonates of the elements in Group 2.
- DRadium reacts faster with water than the other elements in Group 2.