Rubidium


 * Element Name**: Rubidium


 * Element Symbol**: Rb


 * Atomic Mass**: 85[[image:Rubidium.png width="216" height="288" align="right"]]


 * Atomic Number**: 37


 * Protons**: 37


 * Electrons**: 37


 * Discovery**: Discovered by scientist Robert Bunsen and Gustav Kirchhoff in Germany, in 1861.


 * How it was named**: Named from the Latin word rubidius meaning "dark red".


 * State of matter**: Solid (metal)


 * Melting Point**: 39°C


 * Boiling Point**: 688°C


 * Characteristics**: It has a silvery white color, a density of 1532m³, and a mineral hardness of .3.


 * Uses**: It is used for making special glasses, used as a photocell component, used with "ion engines", and it is used as a "getter" in vacuum tubes.


 * Interesting Facts**: Rubidium minerals are found in North America, South Africa, Russia, and Canada. It is also dangerous to consume too much Rubidium because it can cause spasms and hyperirritability.

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