Symbol: Ra
Phase: Solid, white alkaline metal but it reacts on exposure to air to form a dark nitride.
Discovered by Marie and Pierre Curie in 1898.
Atomic number: 88
Atomic Mass: 226
Radium Cheung is 5' 8".
There are 2 valence electrons in Radium. There are 2 valence electrons in Radium.
radium
"Illuminate your world with Radium!" "Shine bright like Radium!" "Glowing brilliance with Radium." "Radiant energy, powered by Radium."
The first name was radium; some isotopes had in the past other names.
Look for the highest numbered atom in the group: radium. Also barium has an empirical radius similar to the radius of radium: 215 pm.
No plural for radium.
Radium primarily forms compounds with oxygen, such as radium oxide (RaO), radium peroxide (RaO2), and radium hydroxide (Ra(OH)2). It can also form compounds with other elements, such as radium chloride (RaCl2) and radium sulfate (RaSO4). These compounds are generally highly radioactive due to the nature of radium as a radioactive element.
Port radium
radium has NO odor
radium was not invented, it was discovered.
Today radium has only limited applications in research laboratories, for example for the preparation of radon standard solutions, in neutron sources of the type Ra-Be, etc. Possible use in radiotherapy of some cancers. Radium was used in the past for luminescent painting of watches and other instruments, was used rarely in toothpaste, cosmetics, etc. These applications are not permitted now because radium is strongly radioactive and dangerous. Now radium hasn't any use at home and in the industry.