Important Componds

Combines with Halogens to produce:

RaCl₂

RaBr₂
(most often sold, shipped, and stored as one of the halides.)

Radium combines with the sulfate ion, SO₄^2-, to form the most insoluable sulfate known, radium sulfate:

Ra + H₂ SO₄ --> Ra SO₄ + H₂

Radium metal reacts with water to produce the most soluable of all the alkaline-earth hydroxides:

2Ra + 2H₂O --> 2Ra OH + H₂