Radium element has 88 protons, 138 neutrons and 88 electrons.
Radium is a slivery white solid metal at room temperature. The melting point of Radium metal is 700 ̊C.
Radium cation is Ra+2.
» Common Radium compounds:
• Radium Nitrate, Ra(NO3)2
• Radium Nitride, Ra3N2
• Radium Chloride, RaCl2
• Radium Hydroxide, Ra(OH)2
• Radium Bromide, RaBr2
• Radium Oxide, RaO
• Radium Sulfide, RaS
• Radium Chlorate, Ra(ClO3)2