The atomic number of radium is 88.
The first name was radium; some isotopes had in the past other names.
Radium belongs to Group 2 of the periodic table, also known as the alkaline earth metals.
Radium has no Latin name as it was unknown to the Romans. The name "Radium" is a synthetic Latin style name made up by its discover: Marie Curie.
Radium has 138 neutrons.
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.
Radium is a non metal element. Atomic number of it is 88.
The name is only radium, with the chemical symbol Ra.
radium and nitrogen
Radium is an element, atomic number 88.
The name radium is derived from the Latin language word radius, equivalent to radiation.
The name radium is derived from the Latin language word radius (= radiation).
RaBr2 is radium bromide.