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.

Pure rubidium is often obtained by reduction of rubidium chloride using metallic calcium at around 750 ºC and low pressures. Rubidium is one of the alkaline metals, as group one of the periodic table are otherwise known.

Rubidium is consistently one of the priciest and most difficult to acquire pure elements. It is actually only rare in the sense that it is concentrated in a few commercially valuable minerals. It comes in two isotopic 'flavors': the atom with 85 neutrons and another with 87.

rubidium (Rb), chemical element of Group 1 (Ia) in the periodic table, the alkali metal group. Rubidium is the second most reactive metal and is very soft, with a silvery-white luster. Rubidium was discovered (1861) spectroscopically by German scientists Robert Bunsen and …

Rubidium is a chemical element with symbol Rb and atomic number 37. Classified as a n alkali metal, Rubidium is a solid at room temperature. [Kr]5s 1. J.C. Slater, J Chem Phys, 1964, 41 (10), 3199-3205. DOI:10.1063/1.1725697.

2023年5月7日 · Rubidium is a metallic element with the atomic number 37 and is represented by the symbol ‘Rb’ in the periodic table. It belongs to the s-block of a group of the periodic table. It is the first alkali metal in the group with a density greater than that of water. It is a very soft, ductile, silvery-white metal.

Rubidium is a soft, silvery-white metallic element that is highly reactive, quickly tarnishing in air. The following table provides a comprehensive list of rubidium (Rb) properties in both SI and US customary/Imperial units at normal temperature and pressure (NTP).

Rubidium is used to generate electricity in some photoelectric cells, commonly referred to as solar panels, or as an electrical signal generator in motion sensor devices.

NEW High Purity 99.95% Rubidium metal sample of about 0.4-0.5 grams in argon sealed ampoule and labeled glass vial. Pure Rubidium ampoule for element collection and laboratory use. DISCOUNT CODE NOT VALID ON THIS ITEM!

Typically, pure rubidium is obtained by reducing rubidium chloride using metallic calcium at low pressure and around 750°C. With an atomic number of 37 and an average atomic mass of 85.47 g/mol, rubidium (Rb) is a member of the alkali metal group.