Radium is a member of the group 2 (alkaline earth metals) of the Periodic Table of Mendeleev; the other members are beryllium, calcium, magnesium, strontium, barium.
Radium is also a radioactive element.
The chemical symbol of radium is Ra.
Radium is a chemical element; a compound has a minimum of two chemical elements.
Radium is in the alkaline earth metals.
The chemical formula of radium carbonate is RaCO3.
Radium is a chemical element, not a compound.
alkaline earth metals
the answer is radium
The chemical symbol of radium is Ra.
The chemical symbol of radium is Ra.
The chemical symbol of radium is Ra.
actinides
Radium is a chemical element, not a mixture.
The chemical symbol of radium is Ra.
Radium is a chemical element; a compound has a minimum of two chemical elements.
Radium is in the alkaline earth metals.
The chemical formula of radium carbonate is RaCO3.
Radium is a chemical element, not a compound.