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Rubidium is a chemical element; it has symbol Rb and atomic number 37. It is a very soft, whitish-grey solid in the alkali metal group, similar to potassium and caesium . [ 9 ] Rubidium is the first alkali metal in the group to have a density higher than water .
Rubidium-87 was the first and the most popular atom for making Bose–Einstein condensates in dilute atomic gases.Even though rubidium-85 is more abundant, rubidium-87 has a positive scattering length, which means it is mutually repulsive, at low temperatures.
Rubidium, 37 Rb; Rubidium ... Spectral lines of rubidium: Other properties; ... the "Main isotopes of <element>" tabular list will be read directly from the Isobox: ...
Pages in category "Rubidium" The following 7 pages are in this category, out of 7 total. This list may not reflect recent changes. ...
A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z). [ 1 ] The definitive visualisation of all 118 elements is the periodic table of the elements , whose history along the principles of the periodic law was one of the founding ...
This is a list of radioactive nuclides (sometimes also called isotopes), ordered by half-life from shortest to longest, in seconds, minutes, hours, days and years. Current methods make it difficult to measure half-lives between approximately 10 −19 and 10 −10 seconds.
The abundance of elements in Earth's crust is shown in tabulated form with the estimated crustal abundance for each ... 37 rubidium: Rb Lithophile 90 (0.009%) 2 28 ...
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