Uranium decay chains
Radium is a chemical element, not a compound.
Radium has 138 neutrons.
marie curei
Radium is a chemical element; a compound has a minimum of two chemical elements.
Radium is in the alkaline earth metals.
Radium is a chemical element, not a compound.
Radium is an element; it has no sub-parts. Radium is a radioactive element, so it will slowly and spontaneously decay into other elements.
Radium is a chemical element, not a mixture.
Radium has 138 neutrons.
Radium is an element itself. It was isolated by Marie Curie from Pitchblende, an ore of Uranium.
its polish
Radium is an element, atomic number 88.
Radium is not used to produce energy.
marie curei
Radium is a chemical element; a compound has a minimum of two chemical elements.
The element that completes the 7s sublevel is radium, with the electron configuration 7s2.
Radium is in the alkaline earth metals.