₃₇Rb (Rubidium)

Rubidium was discovered in 1861 by Robert Bunsen and Gustav Kirchhoff, in Heidelberg, Germany, in the mineral lepidolite through spectroscopy. Because of the bright red lines in its emission spectrum, they chose a name derived from the Latin word rubidus, meaning "deep red".

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Rubidium is a chemical element with symbol Rb and atomic number 37. Rubidium is a soft, silvery-white metallic element of the alkali metal group, with a standard atomic weight of 85.4678.

Atomic Weight:   85.4678

Density:   1.532 g/cm3

Melting Point:   39.31 °C

Boiling Point:   688 °C

Copyright Reserved 2018 by Christian Felix Alavazo