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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 ...
Rubidium–strontium dating This page was last edited on 15 April 2021, at 14:35 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 ...
The platinum-group metals (PGMs), also known as the platinoids, platinides, platidises, platinum group, platinum metals, platinum family or platinum-group elements (PGEs), are six noble, precious metallic elements clustered together in the periodic table. These elements are all transition metals in the d-block (groups 8, 9, and 10, periods 5 ...
Rubidium is the first element placed in period 5. It is an alkali metal , the most reactive group in the periodic table , having properties and similarities with both other alkali metals and other period 5 elements.
It is the major source of the alkali metal rubidium. [13] In 1861, Robert Bunsen and Gustav Kirchhoff extracted 150 kg (330 lb) of lepidolite to yield a few grams of rubidium salts for analysis, and therefore discovered the new element rubidium. [14] [15] It occurs in granite pegmatites, in some high-temperature quartz veins, greisens and granites.
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. This prevents a collapse of all but the smallest condensates.
These are compounds that include rubidium, most possibly in +1 ion form. Pages in category "Rubidium compounds" The following 34 pages are in this category, out of 34 ...
Group 10, numbered by current IUPAC style, is the group of chemical elements in the periodic table that consists of nickel (Ni), palladium (Pd), platinum (Pt), and darmstadtium (Ds).