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allotrope |
Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson | 0.01 sec. |
allotropeAny of two or more forms of the same chemical element. They may have different arrangements of atoms in crystals of the solid—for example, graphite and diamond for carbon—or different numbers of atoms in their molecules—for example, ordinary oxygen (O2) and ozone (O3). Other elements that have allotropes include tin, sulfur, antimony, arsenic, selenium, and phosphorus. allotropeA chemical element that can take on different forms based on the structure of, or the number of atoms in, the molecule. The most common example is carbon. If carbon atoms are bonded in a lattice of four triangular surfaces (tetrahedral), it is a diamond. If the atoms are bonded in sheets of six-sided (hexagonal) lattice, it is graphite. See isotope. allotrope any of two or more physical forms in which an element can exist allotrope [′a·lə‚trōp] (chemistry) A form of an element showing allotropy. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| ? Mentioned in | ? References in periodicals archive | |
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But allotropy is a
property special to (dependent on) allotropes and should appear only
under allotropes. Called linear acetylenic carbon, the new allotrope, or form, of the
otherwise sooty element shows up as amber-colored,
"gossamerlike" threads, whose texture resembles "angel
hair," according to Richard J. A bucky ball is chemically stable and is
an allotrope of carbon. |
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