88
Ra
226Radium
Appearancesilvery white metallic
Categoryalkaline earth metal
Discovered byPierre Curie
Named byN/A
What element is Ra on the periodic table?Ra is the element Radium on the periodic table.
What is the symbol for Radium on the periodic table?The symbol for Radium on the periodic table is Ra.
What does Radium look like?To the human eye, Radium is silvery white metallic.
About RadiumRadium is a chemical element; it has symbol Ra and atomic number 88. It is the sixth element in group 2 of the periodic table, also known as the alkaline earth metals. Pure radium is silvery-white, but it readily reacts with nitrogen (rather than oxygen) upon exposure to air, forming a black surface layer of radium nitride (Ra3N2). All isotopes of radium are radioactive, the most stable isotope being radium-226 with a half-life of 1,600 years. When radium decays, it emits ionizing radiation as a by-product, which can excite fluorescent chemicals and cause radioluminescence. For this property, it was widely used in self-luminous paints following its discovery. Of the radioactive elements that occur in quantity, radium is considered particularly toxic, and it is carcinogenic due to the radioactivity of both it and its immediate decay product radon as well as its tendency to accumulate in the bones.Source: Wikipedia