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www.rsc.org/periodic-table/element/37/rubidium

Rubidium is actually one of our commoner elements and depending on which information source you look at, it is about the 16 th most abundant element in the earth's crust, with a concentration somewhere around 90 parts per million. Although it is relatively abundant compared with other elements such as copper, it is not found in a pure state but ...

www.easycalculation.com/chemistry/elements/rubidium.html

First Ionization Energy (403 kJ/mole) Second Ionization Energy (2632.1 kJ/mole) Third Ionization Energy (3859.4 kJ/mole) Electronegativity (0.82) Electron Affinity

www.lenntech.com/periodic/elements/rb.htm

Rubidium is a soft, silvery-white metallic element of the alkali metals group (Group 1). It is one of the most electropositive and alkaline elements. Rubidium can be liquid at ambient temperature, but only on a hot day given that its melting point is about 40°C.

www.chemistrylearner.com/rubidium.html

Rubidium (pronunciation roo-BID-ee-em [2]), represented by the chemical symbol (molecular formula) Rb [1, 12], is a soft element belonging to the family of alkali metals [1, 2]. It has 29 isotopes with known half-lives the mass numbers of which range from 74 to 102.

en.wikipedia.org/wiki/Rubidium

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. Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, including rapid oxidation in air .

www.thoughtco.com/rubidium-facts-rb-or-element-37-606588

Rubidium is the second most electropositive element. Rubidium can be used to give fireworks a red-violet color. Rubidium is the 23 rd most abundant element in the Earth's crust. Rubidium chloride is used in biochemistry as a biomarker to track where potassium is taken up by living organisms.

www.livescience.com/34519-rubidium.html

Properties, sources and uses of the element rubidium. Rubidium is a silvery-white and very soft metal — and one of the most highly reactive elements on the periodic table.

www.chemistryexplained.com/elements/P-T/Rubidium.html

Rubidium is a soft, silvery metal. It is one of the most active chemical elements. Rubidium is a member of the alkali family. The alkali family consists of elements in Group 1 (IA) of the periodic table. The periodic table is a chart that shows how chemical elements are related to one another.

www.webelements.com/rubidium/physics.html

This WebElements periodic table page contains physical properties for the element rubidium

environmentalchemistry.com/yogi/periodic/Rb.html

Periodic Table of Elements Element Rubidium - Rb. Comprehensive data on the chemical element Rubidium is provided on this page; including scores of properties, element names in many languages, most known nuclides of Rubidium. Common chemical compounds are also provided for many elements.