1) Atomic number 37 2) Chemical element 3) Element discovered in 1861 4) Element number 37 5) Element with the symbol Rb 6) Metal 7) Metallic element 8) Reducing agent
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1) Rb
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Rubidium is a chemical element with the symbol Rb and atomic number 37. Rubidium is a soft, silvery-white metallic element of the alkali metal group, with an atomic mass of 85.4678. Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, such as very rapid oxidation in air. Natural rubidium is a mix of two i...
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• (n.) A rare metallic element. 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, 85.2.
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chemical element of Group 1 (also called Group Ia) in the periodic table, the alkali metal group. Rubidium is the second most reactive metal and is ... [8 related articles]
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(Rb) Rubidium Credit: RSC A soft, silvery-white, metallic element belonging to the family of alkali metals. It was discovered in 1861 in Heidelberg by Robert Bunsen and Gustav Kirchhoff, by spectroscopic examination of the mineral lepidolite; its name is derived from th...
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<chemistry, element> A rare metallic element. 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. ... Origin: NL, fr. L. Rubidus red, fr. Rubere to be red. So called from two dark red spectroscopic lines by means of which it was...
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(Rb) (roo-bid´e-әm) a chemical element, atomic number 37, atomic weight 85.47. rubidium 82 a radioactive isotope of rubidium having a half-life of 1.273 minutes and decaying by positron emission. It is used as a tracer in positron emission tomography.
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One of the alkali earth metals, can be used to substitute for potassium in some ion flux experiments.
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Ru·bid'i·um noun [ New Latin , from Latin
rubidus red, from
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 .]
(Chemistry) A rare metallic element. It occurs q...
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(Rb) Type: Term Pronunciation: rū-bid′ē-ŭm Definitions: 1. An alkali element, atomic no. 37, atomic wt. 85.4678; its salts have been used in medicine for the same purposes as the corresponding sodium or potassium salts.
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Rubidium is a metallic element, symbol Rb. It is one of the alkali metals in group 1 of the periodic table. It was discovered spectroscopically in 1860 by the German chemist Robert Bunsen and the German physicist Gustav Kirchhoff, who named the element after the red lines in its spectrum. Metallic rubidium is silver-white and very soft. After caesi...
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[
n] - a soft silvery metallic element of the alkali metal group
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Rubidium is a soft and highly reactive member of the alkali group of metals. It is widely distributed throughout nature, but only occurs in small amounts, the main source being carnallite, the hydrated chloride of magnesium and potassium. The metal is obtained by the electrolysis of the fused halide, although it can be obtained on a laboratory scal...
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Rb noun 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
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Soft, silver-white, metallic element, atomic number 37, relative atomic mass 85.47. It is one of the alkali metals in Group 1 of the periodic table. Reactivity of the alkali metals increases down the group and so rubidium is more reactive than lithium, sodium, and potassium. Rubidium ignites spontaneously in air and reacts violently with water....
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a silver-white, metallic, active element resembling potassium, used in photoelectric cells and radio vacuum tubes. Symbol: Rb; at. wt.: 85.47; at. no.: 37; sp. gr.: 1.53 at 20°C.
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