Chemistry (now historical). law of octaves n. an early form of the periodic law, propounded by J. A. R. Newlands, according to which, when the…
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| 释义 | the world > matter > chemistry > elements and compounds > periodicity > [noun] (7) law of octaves1865 Chemistry (now historical). law of octaves n. an early form of the periodic law, propounded by J. A. R. Newlands, according to which, when the… periodic law1872 the law that the chemical elements, when listed in order of their atomic numbers (originally, atomic weights), fall into recurring groups, so… periodic system1875 = periodic classification n. period1879 Chemistry. A horizontal row in the periodic table of the elements; the set of elements occupying such a row, usually comprising an alkali metal and… periodicity1879 Chemistry. The complex periodic variation of the properties of the chemical elements with increasing atomic number. periodic classification1881 the classification of the chemical elements according to the periodic law. periodic table1890 a table of the elements arranged according to the periodic law; spec. one in which they are arranged in order of atomic number, usually in rows, such… |
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