Rubidium
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Rubidium (Rb) is a silver-white coloured metal that has the atomic number 37 in the periodic table. It is an Alkali Metal and is located in Group 1 of the periodic table. it has the symbol Rb.
Rubidium unlike other Alkali metals will not float on water due to its high density. Rubidium was discovered in 1861 by German chemists Robert Bunsen and Gustav Kirchhoff using spectroscopy. They analysed the mineral lepidolite and witnessed a bright red emission line. Rubidium is named after the Latin ‘rubidus’ which means deep red. Rubidium has a number of uses, primarily in fireworks. Rubidium’s isotopes exhibit radioactive activity and Rb 87 is commonly sed in laser cooling and also in atomic clocks. It is located in Group 1, an Alkali metal. It has a melting point of 39.9°c and a boiling point of 688°c.
FAQ's
R. Bunsen, G. Kirchoff
1861
Uses
Used as a catalyst, photocells, and vacuum and cathode-ray tubes.
Sources
Occurs abundantly, but so widespread that production is limited. Usually obtained from lithium production.
About the author
Nathan M
Nathan has a degree in BSc Biomedical Chemistry at Warwick University and a degree in PGCE Science at Wolverhampton University, UK. Nathan's subject matter ranges from general chemistry and organic chemistry. Nathan also created the curriculum on Breaking Atom in the course page.
Citation
Rb
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