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单词 periodic table
释义

WordReference Random House Learner's Dictionary of American English © 2024
pe•ri•od•ic ta•ble /ˈpɪriˈɑdɪk ˈteɪbəl/USA pronunciation  n. [countable]
  1. Chemistrya table in which the chemical elements are arranged according to their atomic numbers in related groups.

WordReference Random House Unabridged Dictionary of American English © 2024
peri•odic table  (pērē odik, pēr′-),USA pronunciation [Chem.]
  1. Chemistrya table illustrating the periodic system, in which the chemical elements, formerly arranged in the order of their atomic weights and now according to their atomic numbers, are shown in related groups.
  • 1890–95

Collins Concise English Dictionary © HarperCollins Publishers::
periodic table /ˌpɪərɪˈɒdɪk/ n
  1. a table of the elements, arranged in order of increasing atomic number, based on the periodic law. Elements having similar chemical properties and electronic structures appear in vertical columns (groups)
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