Why does barium react with cold water more quickly than magnesium?
- ABarium atoms are larger and form ions more easily than magnesium atoms.
- BBarium floats on the surface of the water but magnesium sinks in the water.
- CBarium hydroxide is less soluble than magnesium hydroxide.
- DThe sum of the 1st and 2nd ionisation energies of barium is more than that for magnesium.