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rubidium
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The answer RUBIDIUM has 7 possible clue(s) in existing crosswords.
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Definitions of rubidium in various dictionaries:
noun - a soft silvery metallic element of the alkali metal group
adj - a metallic element [n -S] : RUBIDIC
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, wit...
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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. On Earth, natural rubidium comprises two isotopes: 72% is the stable isotope, 85Rb; 28% is the slightly radioactive 87Rb, with a half-life of 49 billion yearsmore than three times longer than the estimated age of the universe. * German chemists Robert Bunsen and Gustav Kirchhoff discovered rubidium in 1861 by the newly developed technique, flame spectroscopy. * Rubidium's compounds have various chemical and electronic applications. Rubidium metal is easily vaporized and has a convenient spectral absorption range, making it a frequent target for laser manipulation of atoms. * Rubidium is not a known nutrient for any living organisms. However, rubidium ions have the same charge as |