|Atomic mass||85.47 amu|
|Date of discovery||1861|
|Name of discoverer||Bunsen, R.W. and Kirchoff, G.|
|Name origin||From the Latin Rubidius, meaning "deep red"|
|Obtained from||lepidolite, pollucite, carnallite|
Rubidium is an element in the alkali metals class of the periodic table. It is so chemically active that it is never found free (in elemental form) in nature, and can sometimes catch fire on mere exposure to air.
It was discovered by Robert Bunsen and Gustav Kirchoff, using their newly invented spectroscope. It (along with cesium) was identified by a previously unseen red spectral line in the analysis of mineral water from a German spa. The name comes from that color.
- Wile, Dr. Jay L. Exploring Creation With Physical Science. Apologia Educational Ministries, Inc. 1999, 2000
|Periodic Table of the Elements|