Radium is a solid alkaline earth metal at room temperature.
At room temperature radium is a solid metal.
At room temperature and pressure radium is a solid metal.
At room temperature and pressure radium is a solid metal.
solid
Radium is a solid, radioactive, alkaline earth metal.
At room temperature radium is a solid metal.
Radium is a solid alkaline earth metal at room temperature.
Radium is a solid alkaline earth metal at room temperature.
Radium is solid at room temperature, but it can be turned into a liquid at 700 0C.
At room temperature and pressure radium is a solid metal.
At room temperature and pressure radium is a solid metal.
solid
solid
Radium is a solid, radioactive, alkaline earth metal.
Radon is a gas at room temperature, and quite a bit below it, too. A link can be found below.
Radium is a solid in standard temperature and pressure.
The density of radium at about room temperature is 5.5  g·cm−3. That's 5.5 grams per cubic centimeter, or 5.5 grams per milliliter. A link to the Wikipedia article on radium is provided.