单词	periodic table
释义	periodic table noun : an arrangement of chemical elements based on the periodic law Example Sentences Recent Examples on the Web In 10th grade, my chemistry teacher offered extra credit to anyone who wrote and performed a song about the periodic table. Alex Mcelroy, New York Times, 18 Jan. 2022 The tree of life became for biology what the periodic table was for chemistry—both a foundation and an emblem for the field. Ben Crair, The New Yorker, 15 July 2022 The periodic table simplified a lot of intricate information. Olga V. Mack, Forbes, 6 May 2022 The question of how many naturally occurring elements make up the periodic table of chemistry has a precise answer: 92 (including byproducts of nuclear reactions). Christof Koch, Scientific American, 6 Oct. 2021 In the beginning there was only hydrogen and helium, says Jackiewicz, with all the other elements on the periodic table synthesized in the cores of stars. Bruce Dorminey, Forbes, 2 July 2022 As these elements decay, uranium (No. 92 on the periodic table) degrades to radium (No. 88), which in turn degrades into radon (No. 86). Brian Maffly, The Salt Lake Tribune, 20 May 2022 Eat nearby at Miracle of Science and enjoy the periodic table menu (Hb for hamburger). Globe Staff, BostonGlobe.com, 6 May 2022 And Asegun Henry, now a mechanical engineer at MIT, once created unique musical signatures for every element in the periodic table, even setting them to music. Jennifer Ouellette, Ars Technica, 2 May 2022 See More Word History First Known Use 1890, in the meaning defined above Medical Definition periodic table noun : an arrangement of chemical elements based on the periodic law
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