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rubidium    
n. 铷

铷

rubidium
n 1: a soft silvery metallic element of the alkali metal group;
burns in air and reacts violently in water; occurs in
carnallite and lepidolite and pollucite [synonym: {rubidium},
{Rb}, {atomic number 37}]

Rubidium \Ru*bid"i*um\, n. [NL., fr. L. rubidus red, fr. rubere
to be red. So called from two dark red spectroscopic lines by
means of which it was discovered in the lepidolite from
Rozena, Moravia. See {Rubicund}.] (Chem.)
A rare metallic element of the alkali metal series, atomic
number 37. It occurs quite widely, but in small quantities,
and always combined. It is isolated as a soft yellowish white
metal, analogous to potassium in most of its properties.
Symbol Rb. Atomic weight, 85.48.
[1913 Webster]


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  • Rubidium - Wikipedia
    Rubidium 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
  • Rubidium - Minecraft Mods - CurseForge
    Rubidium contains all the features of the classic Sodium A modern OpenGL rendering pipeline for chunk rendering that takes advantage of multi-draw techniques, allowing for a significant reduction in CPU overhead (~90%) when rendering the world
  • Rubidium | Properties, Uses, Isotopes | Britannica
    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 - Element information, properties and uses | Periodic Table
    Rubidium is little used outside research It has been used as a component of photocells, to remove traces of oxygen from vacuum tubes and to make special types of glass It is easily ionised so was considered for use in ion engines, but was found to be less effective than caesium
  • Rubidium Facts – Rb or Element 37 - Science Notes and Projects
    Rubidium is a soft, silvery-white metallic element of the alkali metal group, known for its strikingly colorful flame test People encounter rubidium in specialized applications such as atomic clocks, medical research, and occasionally in fireworks for its characteristic red-purple flame coloration
  • Rubidium | History, Uses, Facts, Physical Chemical Characteristics
    Rubidium is ductile metal and used for various purposes It has a melting point of 39 3°C and have a low density, 1 532 g cm 3 Rubidium is a very reactive metal It undergoes rapid oxidation in the presence of air Rubidium burns with a purplish flame like potassium
  • A review of rubidium: Resources, technologies, and applications
    Rubidium (Rb), as a rare alkali metal and an emerging industrial element, plays a critical role in various fields due to its unique physicochemical properties, including its ease of ionization, long-term stability of hyperfine transition frequencies, and excellent photoelectric effect
  • RUBIDIUM
    Rubidium concentrate is produced as a byproduct of pollucite (cesium) and lepidolite (lithium) mining and is imported from other countries for processing in the United States Applications for rubidium and its compounds include biomedical research, electronics, pyrotechnics, and specialty glass
  • Rubidium | Rb (Element) - PubChem
    Chemical element, Rubidium, information from authoritative sources Look up properties, history, uses, and more
  • Periodic Table of Elements: Los Alamos National Laboratory
    Rubidium can be liquid at room temperature It is a soft, silvery-white metallic element of the alkali group and is the second most electropositive and alkaline element It ignites spontaneously in air and reacts violently in water, setting fire to the liberated hydrogen





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