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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. Rubidium is the first alkali metal in the group to have a density higher than water.
Rubidium is one of the alkaline metals, as group one of the periodic table are otherwise known. The alkali metals have a single electron in their outer shell, which makes them highly reactive with oxygen, water and halogens, and also means that their oxidation state never exceeds +1.
- Gustav Kirchhoff and Robert Bunsen
- 1861
Rubidium, 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.
- James L. Dye
Explore the multifaceted world of Rubidium—a soft, highly reactive alkali metal with diverse applications in atomic clocks, medical imaging, and industrial processes. Understand its properties, historical discovery, and safety precautions. Ideal for students, educators, and researchers.
Nov 21, 2020 · Rubidium is a chemical element with atomic number 37 which means there are 37 protons and 37 electrons in the atomic structure. The chemical symbol for Rubidium is Rb. Rubidium is a soft, silvery-white metallic element of the alkali metal group, with an atomic mass of 85.4678.
- 37
- Solid
- Alkali Metal
- Rb
Rubidium is the 37th element in the periodic table and has a symbol of Rb and atomic number of 37. It has an atomic weight of 85.4678 and a mass number of 85. Rubidium has thirty-seven protons and forty-eight neutrons in its nucleus, and thirty-seven electrons in five shells.
Get the facts about element Rubidium (Rb) [37] from the periodic table. Find physical data, electron configuration, chemical properties, aggregation states, isotope data (including decay trees) as well as some historic information.
