What are some facts about rubidium?

According to the New World Encyclopedia, rubidium doesn't have many commercial uses but it is used in vapor turbines, in vacuum tubes, in photocells, in atomic clocks, in some types of glass, the production of superoxide by burning oxygen, and with potassium ions in several biological uses. read more

Rubidium is a silvery-white and very soft metal — and one of the most highly reactive elements on the periodic table. Rubidium has a density about one and a half times that of water and is solid at room temperature, although the metal will melt if it's just a bit warmer, according to Chemicool. read more

Rubidium (Rb) has an atomic number of thirty-seven. This soft, silvery-white member of the alkalai metals group has thirty-seven protons in the nucleus of one atom. read more

Rubidium chloride is used in biochemistry as a biomarker to track where potassium is taken up by living organisms. The hyper-fine electron structure of Rubidium-87 is used in some atomic clocks to maintain accuracy. read more

According to the New World Encyclopedia, rubidium doesn’t have many commercial uses but it is used in vapor turbines, in vacuum tubes, in photocells, in atomic clocks, in some types of glass, the production of superoxide by burning oxygen, and with potassium ions in several biological uses. read more

Rubidium is not found uncombined in nature but occurs widely distributed in lepidolite (the major source), carnallite, pollucite, and some rare minerals, and with lithium in seawater, brines, and natural spring waters. read more