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ALLOTROPY (Gr. liXXor, other, and rpo...

Online Encyclopedia
Originally appearing in Volume V01, Page 704 of the 1911 Encyclopedia Britannica.
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ALLOTROPY (Gr. liXXor, other, and rpo7ros, manner), a name applied by J. J. Berzelius to the property possessed by certain substances of existing in different modifications. Custom has to some extent restricted its use to inorganic chemistry; the corresponding property of organic compounds being generally termed isomerism (q.v.). Conspicuous examples are afforded by oxygen, carbon, boron, silicon, phosphorus, mercuric oxide and iodide.
End of Article: ALLOTROPY (Gr. liXXor, other, and rpo7ros, manner)
ALLOWANCE (from "allow,' derived through 0. Fr. alo...

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