allotropy
n. existence of a chemical element in two or more different forms (Chemistry) | ||||
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Allotropy definition was found in categories: Language, Idioms & Slang(3) Science & Technology(2) Encyclopedia(1)
Allotropy Definition from Language, Idioms & Slang Dictionaries & Glossaries
| Webster's Revised Unabridged Dictionary (1913) |
Allotropy
(n.)
The property of existing in two or more conditions which are distinct in their physical or chemical relations.
(n.)
The property of existing in two or more conditions which are distinct in their physical or chemical relations.
| WordNet 2.0 |
allotropy
Noun
1. the phenomenon of an element existing in two or more physical forms
(synonym) allotropism
(hypernym) chemical phenomenon
Noun
1. the phenomenon of an element existing in two or more physical forms
(synonym) allotropism
(hypernym) chemical phenomenon
| hEnglish - advanced version |
allotropy
allotropy
see under allotropism
allotropy
see under allotropism
Allotropy Definition from Science & Technology Dictionaries & Glossaries
| General Chemistry Glossary |
allotrope (allotropy; allotropic; allotropism)
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Compare with isotope and polymorph .Some elements occur in several distinct forms called allotropes. Allotropes have different chemical and physical properties. For example, graphite and diamond are allotropes of carbon.
Compare with isotope and polymorph .Some elements occur in several distinct forms called allotropes. Allotropes have different chemical and physical properties. For example, graphite and diamond are allotropes of carbon.
| Materials Science and Engineering Glossary of Terms |
allotropy
the possibility of existence of two or more different crystal structures for a substance (generally an elemental solid).
the possibility of existence of two or more different crystal structures for a substance (generally an elemental solid).
Allotropy Definition from Encyclopedia Dictionaries & Glossaries
| Wikipedia English - The Free Encyclopedia |
Allotropy
Allotropy (Gr. allos, other, and tropos, manner) is a behavior exhibited by certain chemical elements: these elements can exist in two or more different forms, known as allotropes of that element. In each different allotrope, the element's atoms are bonded together in a different manner.
For example, the element carbon has two common allotropes: diamond, where the carbon atoms are bonded together in a tetrahedral lattice arrangement, and graphite, where the carbon atoms are bonded together in sheets of a hexagonal lattice.
Note that allotropy refers only to different forms of an element within the same phase or state of matter (i.e. different solid, liquid or gas forms) - the changes of state between solid, liquid and gas in themselves are not considered allotropy. For some elements, allotropes have different molecular formulae which can persist in different phases - for example, the two allotropes of oxygen (dioxygen, O2 and ozone, O3), can both exist in the solid, liquid and gaseous states. Conversely, some elements do not maintain distinct allotropes in different phases: for example phosphorus has numerous solid allotropes, which all revert to the same P4 form when melted to the liquid state.
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