Isotopes: There are 29 known isotopes of rubidium. Natural rubidium consists of two isotopes, rubidium-85 (stable with 72.15% abundance) and rubidium-87 (27.85% abundance, a beta emitter with a half-life of 4.9 x 10 10 years).
http://chemistry.about.com/od/elementfacts/a/rubidium.htm
Discovery: R. Bunsen, G. Kirchoff 1861 (Germany), discovered rubidium in the mineral petalite via its dark red spectral lines. Electron Configuration: [Kr] 5s 1. Word Origin: Latin: rubidus: deepest red.
http://chemistry.about.com/od/elementfacts/a/rubidium.htm
Rubidium is pronounced as roo-BID-ee-em. History and Uses: Rubidium was discovered by the German chemists Robert Bunsen and Gustav Kirchhoff in 1861 while analyzing samples of the mineral lepidolite (KLi 2 Al(Al, Si) 3 O 10 (F, OH) 2) with a device called a spectroscope. The sample produced a set of deep red spectral lines they had never seen before.
http://education.jlab.org/itselemental/ele037.html
Rubidium: geological information. Rubidium is far too reactive to be found as the free metal in nature. It is relatively rare, although it is the 16th most abundant element in the earth's crust. Rubidium is present in some minerals found in North America, South Africa, Russia, and Canada. It is found in some potassium minerals (lepidolites, biotites, feldspar, carnallite), sometimes with caesium as well.
http://www.webelements.com/rubidium/geology.html
Rubidium is used in vacuum tubes as a getter, a material that combines with and removes trace gases from vacuum tubes. It is also used in the manufacture of photocells and in special glasses.
http://education.jlab.org/itselemental/ele037.html
Rubidium was discovered by German scientists Robert Bunsen and Gustav Kirchhoff in 1861. A year earlier they have invented a type of spectroscope (spectrometer), which is an instrument used to measure the different properties of light.
http://wanttoknowit.com/who-discovered-rubidium/
Properties: Rubidium may be liquid at room temperature. It ignites spontaneously in air and reacts violently in water, setting fire to the liberated hydrogen. Thus, rubidium must be stored under dry mineral oil, in a vacuum, or in an inert atmosphere. It is a soft, silvery-white metallic element of the alkali group.
http://chemistry.about.com/od/elementfacts/a/rubidium.htm
1 Rubidium was discovered using spectroscopy. 2  When Bunsen and Kirchoff examined their sample of petalite, they found two red spectral lines deep into the red part of the spectrum. 3  They named their new element rubidium after the Latin word rubidus meaning 'deepest red'.
http://chemistry.about.com/od/elementfacts/a/rubidium.htm
Who Discovered Rubidium. 02 Mar, 2012 Who discovered 0. Rubidium is a very soft, and highly reactive, silvery white metal. It is a chemical element with an atomic mass of 85.4678 and is represented by the chemical symbol Rb and the atomic number 37. It is the 23rd most common element in the crust of the Earth, but it is not widely mined because it has limited uses.
http://wanttoknowit.com/who-discovered-rubidium/
1 Rubidium melts just a little above body temperature. 2  Rubidium was discovered using spectroscopy. 3  When Bunsen and Kirchoff examined their sample of petalite, they found two red spectral lines deep into the red part of the spectrum. 4  They named their new element rubidium after the Latin word rubidus meaning 'deepest red'.
http://chemistry.about.com/od/elementfacts/a/rubidium.htm
who found rubidium
Robert Bunsen and Gustav Kirchhoff are the founder of rubidium. Robert Bunsen and Gustav Kirchhoff found rubidium.