Definitions for rubidium
ruˈbɪd i əmru·bid·i·um

Princeton's WordNetRate this definition:0.0 / 0 votes

1. rubidium, Rb, atomic number 37noun

   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

WiktionaryRate this definition:0.0 / 0 votes

1. rubidiumnoun

   A metallic chemical element (symbol Rb) with an atomic number of 37.

WikipediaRate this definition:0.0 / 0 votes

1. Rubidium

   Rubidium is the chemical element with the 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. On Earth, natural rubidium comprises two isotopes: 72% is a stable isotope 85Rb, and 28% is slightly radioactive 87Rb, with a half-life of 48.8 billion years—more than three times as long as the estimated age of the universe. German chemists Robert Bunsen and Gustav Kirchhoff discovered rubidium in 1861 by the newly developed technique, flame spectroscopy. The name comes from the Latin word rubidus, meaning deep red, the color of its emission spectrum. 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 similar properties and the same charge as potassium ions, and are actively taken up and treated by animal cells in similar ways.

ChatGPTRate this definition:0.0 / 0 votes

1. rubidium

   Rubidium is a chemical element with the symbol Rb and atomic number 37. It is a soft, silvery-white metallic element that belongs to the alkali metal group of the periodic table. Rubidium is highly reactive and has very few industrial applications. It is typically used in research, in certain types of batteries, and sometimes as a component in purple fireworks. Its compounds are used in glasses and ceramics and in the production of vacuum tubes.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Rubidiumnoun

   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

2. Etymology: [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.]

WikidataRate this definition:0.0 / 0 votes

1. Rubidium

   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 elements in Group 1, such as very rapid oxidation in air. Rubidium has only one stable isotope, 85Rb. Another isotope, 87Rb, which composes almost 28% of naturally occurring rubidium, is slightly radioactive with a half-life of 49 billion years—more 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 method of 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 known to be necessary for any living organisms. However, like caesium, rubidium ions are handled by living organisms in a manner similar to potassium ions, being actively taken up by plants and by animal cells.

Chambers 20th Century DictionaryRate this definition:0.0 / 0 votes

1. Rubidium

   rōō-bid′i-um, n. a soft silvery-white metallic element. [L. rubidus, red.]

U.S. National Library of MedicineRate this definition:1.0 / 1 vote

1. Rubidium

   An element that is an alkali metal. It has an atomic symbol Rb, atomic number 37, and atomic weight 85.47. It is used as a chemical reagent and in the manufacture of photoelectric cells.

Matched Categories

1. • Metallic Element

How to pronounce rubidium?

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Numerology

1. Chaldean Numerology

   The numerical value of rubidium in Chaldean Numerology is: 8

2. Pythagorean Numerology

   The numerical value of rubidium in Pythagorean Numerology is: 7

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=rubidium
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Rubidium
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Rubidium
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/rubidium
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=rubidium
7. ^ Chambers 20th Century Dictionary
   https://www.gutenberg.org/files/37683/37683-h/37683-h.htm#:~:text=rubidium