| LC control no. | sh2014000656 |
|---|---|
| Topical heading | Periodic table of the elements |
| Variant(s) | Periodic law--Tables |
| See also | Chemical elements |
| Found in | Work cat: 2011020804: Stwertka, Albert. A guide to the elements. 2012: p. 6 (periodic table (the table)) p. 7 (periodic table) p. 8 (The modern periodic table is based primarily on the work of the Russian chemist Dmitry Ivanovich Mendeleyev (1834-1907) and the German physicist Julius Lothar Meyer (1830-1895). Working independently, these scientists developed similar periodic tables within a few months of each other in 1869. Mendeleyev, however, is usually given the credit for having developed the periodic table because he managed to publish his work first. Mendeleyev, who was a professor of chemistry at the University of St. Petersburg, developed the periodic table while preparing a chemistry textbook for his students.) Britannica (Periodic table of the elements (chemsitry); in chemistry, the organized array of all the chemical elements in order of increasing atomic number- -i.e., the total number of protons in the atomic nucleus. When the chemical elements are thus arranged, there is a recurring pattern called the periodic law in their properties, in which elements in the same column (group) have similar properties. The initial discovery, which was made by Dmitry I. Mendeleyev in the mid-19th century, has been of inestimable value in the development of chemistry.) Colliers (Periodic table; a classification of the chemical elements in order of increasing atomic number which reveals common properties among them. Both the vertical rows, or groups, and the horizontal rows, or periods encompass elements having similar properties. Thus, the periodic talbe provides a means by which one may obtain knowledge of an element simply by referring to the properties of the element's neighbors in a group or period. Valence, state, hardness, color, physical and chemical behavior, ionization, stability, whether metal or nonmetal, are some of the properties that may be predicted of an element by use of the periodic table.) McGraw Hill encyclopedia of chemistry (Periodic table; a table of the elements, written in sequence in the order of atomic number or atomic weight and arranged in horizontal rows (periods) and vertical columns (groups) to illustrate the occurrence of similarities in the properties of the elements as a periodic function of the sequence. Each element, represented by its symbol and atomic number, occupies a separate square, and the sequential arrangement is in the order of atomic number.) Webster's third new international dictionary, unabridged (Periodic table; an arrangement of chemical elements based on the periodic law and prepared in various forms that are usu. either short with only short periods (as in Mendeleeff's original table) or long with long as well as short periods (as in most modern tables). (Definition, p. 1681; table, p. 1680) |
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