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barium    音标拼音: [b'ɛriəm]
n. 钡

钡

barium
n 1: a soft silvery metallic element of the alkali earth group;
found in barite [synonym: {barium}, {Ba}, {atomic number 56}]

Barium \Ba"ri*um\, n. [NL., fr. Gr. bary`s heavy.] (Chem.)
One of the elements, belonging to the alkaline earth group; a
metal having a silver-white color, and melting at a very high
temperature. It is difficult to obtain the pure metal, from
the facility with which it becomes oxidized in the air.
Atomic weight, 137. Symbol, Ba. Its oxide called baryta.
[Rarely written {barytum}.]
[1913 Webster]

Note: Some of the compounds of this element are remarkable
for their high specific gravity, as the sulphate,
called heavy spar, and the like. The oxide was called
barote, by Guyton de Morveau, which name was changed by
Lavoisier to baryta, whence the name of the metal.
[1913 Webster]

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  • Barium | Uses, Compounds, Facts | Britannica
    Barium, chemical element, one of the alkaline-earth metals of Group 2 of the periodic table The element is used in metallurgy, and its compounds are used in pyrotechnics, petroleum production, and radiology Barium has a silvery white luster when freshly cut
  • Barium - Element information, properties and uses | Periodic Table
    Element Barium (Ba), Group 2, Atomic Number 56, s-block, Mass 137 327 Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images
  • Barium (Ba) Element: Properties, Uses, Reactions, Effects - Science Info
    Barium is a chemical element with the atomic number 56 and is represented by the symbol ‘Ba’ in the periodic table It is soft and silvery in appearance and classified as alkaline earth metal and belongs to the s-block of group 2 of the periodic table It is a highly reactive chemical so it can not be found as a free element in nature
  • Barium: Properties, Compounds and Uses - allen. in
    Barium (Ba) is a chemical element with atomic number 56, located in Group 2 of the periodic table It is a soft, silvery, alkaline earth metal known for its high reactivity, and as such, it is never found in its free form in nature
  • Comprehensive Guide to Barium: Properties, Uses, and Safety
    Explore the intriguing world of Barium, an alkaline earth metal with diverse applications in industry, medicine, and more This comprehensive guide covers Barium's historical background, physical and chemical properties, its uses in paint, ceramics, medicine, and special applications like pyrotechnics and electronics
  • Barium, Chemical Element - water, uses, elements, metal, number, name . . .
    Pure barium is a pale yellow, somewhat shiny, somewhat malleable metal Malleable means capable of being hammered into thin sheets It has a melting point of about 700°C (1,300°F) and a boiling point of about 1,500°C (2,700°F) Its density is 3 6 grams per cubic centimeter When heated, barium compounds give off a pale yellow-green flame
  • What is Barium? - BYJUS
    What is Barium? Represented by the symbol ‘Ba’, Barium is a group 2 element in the periodic table with atomic number 56 Table of Contents About Barium; Chemical Properties of Barium; Uses of Barium; Frequently Asked Questions – FAQs; About Barium
  • What Is Barium? | Essential Chemical Insights
    Barium, a member of the alkaline earth metals group, is an element that boasts a variety of intriguing properties and applications It's represented by the symbol Ba on the periodic table and has an atomic number of 56
  • Barium - Living Periodic Table
    Barium (symbol Ba) is a soft, silvery-white metal that belongs to a group of elements called the alkaline earth metals It’s highly reactive, meaning it doesn’t exist freely in nature and is usually found combined with other elements in minerals like barite (barium sulfate) and witherite (barium carbonate)
  • Barium Element | History, Uses, Facts, Physical Chemical Characteristics
    Barium is a chemical element with symbol Ba and atomic number 56 It is the fifth element in group 2 and is a soft, silvery alkaline earth metal Because of its high chemical reactivity, barium is never found in nature as a free element





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