rubidium
n. (Rb) metallic chemical element (Chemistry) | ||||
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Rubidium Definition from Language, Idioms & Slang Dictionaries & Glossaries
| Webster's Revised Unabridged Dictionary (1913) |
Rubidium
(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.
(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.
| WordNet 2.0 |
rubidium
Noun
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) Rb, atomic number 37
(hypernym) metallic element, metal
(substance-holonym) carnallite
Noun
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) Rb, atomic number 37
(hypernym) metallic element, metal
(substance-holonym) carnallite
| hEnglish - advanced version |
rubidium
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. 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.
rubidium
n : 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 [syn: rb, atomic number 37 ]
rubidium
symbol: rb atomic number: 37 atomic weight: 85.47 soft silvery metallic element, belongs to group 1 of the periodic table. rb-97, the naturally occurring isotope, is radioactive. it is highly reactive, with properties similar to other elements in group 1, like igniting spontaneously in air. discovered spectroscopically in 1861 by w. bunsen and g.r. kirchoff.
-- elements
similar words(1)
rubidium-strontium dating
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. 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.
rubidium
n : 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 [syn: rb, atomic number 37 ]
rubidium
symbol: rb atomic number: 37 atomic weight: 85.47 soft silvery metallic element, belongs to group 1 of the periodic table. rb-97, the naturally occurring isotope, is radioactive. it is highly reactive, with properties similar to other elements in group 1, like igniting spontaneously in air. discovered spectroscopically in 1861 by w. bunsen and g.r. kirchoff.
-- elements
similar words(1)
rubidium-strontium dating
Rubidium Definition from Science & Technology Dictionaries & Glossaries
| Mineralogy Database |
Rubidium (Rb )
Atomic Mass : 85.4678
Atomic Number : 37
Name Origins: Latin, rubidius = "deepest red."
Year Discovered : 1861
Discovery Credits : W. Noddack, Ida Tacke, and O. Berg in Berlin, Germany.
More Details
Atomic Mass : 85.4678
Atomic Number : 37
Name Origins: Latin, rubidius = "deepest red."
Year Discovered : 1861
Discovery Credits : W. Noddack, Ida Tacke, and O. Berg in Berlin, Germany.
More Details
| Chemistry of the Elements |
Rubidium
Name: rubidium
Symbol: Rb
Atomic number: 37
Atomic weight: 85.4678 (3) g
Group in periodic table: 1
Group name: Alkaline metal
Period in periodic table: 5
Block in periodic table: s-block
CAS registry ID: 7440-17-7
Rubidium can be liquid at ambient temperature, but only on a hot day given that its melting point is about 40°C. It is a soft, silvery-white metallic element of the alkali metals group (Group 1). It is one of the most most electropositive and alkaline elements. It ignites spontaneously in air and reacts violently with water, setting fire to the liberated hydrogen. As so all the other alkali metals, it forms amalgams with mercury. It alloys with gold, caesium, sodium, and potassium. It colours a flame yellowish-violet.
Name: rubidium
Symbol: Rb
Atomic number: 37
Atomic weight: 85.4678 (3) g
Group in periodic table: 1
Group name: Alkaline metal
Period in periodic table: 5
Block in periodic table: s-block
CAS registry ID: 7440-17-7
Rubidium can be liquid at ambient temperature, but only on a hot day given that its melting point is about 40°C. It is a soft, silvery-white metallic element of the alkali metals group (Group 1). It is one of the most most electropositive and alkaline elements. It ignites spontaneously in air and reacts violently with water, setting fire to the liberated hydrogen. As so all the other alkali metals, it forms amalgams with mercury. It alloys with gold, caesium, sodium, and potassium. It colours a flame yellowish-violet.
Rubidium Definition from Entertainment & Music Dictionaries & Glossaries
| English to Federation-Standard Golic Vulcan |
Rubidium
gol-tukh
gol-tukh
Rubidium Definition from Encyclopedia Dictionaries & Glossaries
| Wikipedia English - The Free Encyclopedia |
Rubidium
Rubidium (IPA: ) is a chemical element in the periodic table that has the symbol Rb and atomic number 37. Rb is a soft, silvery-white metallic element of the alkali metal group. Rb-87, a naturally occurring isotope, is (slightly) radioactive. Rubidium is very soft and highly reactive, with properties similar to other elements in group 1, like rapid oxidation in air.
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