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periodic table noun

  /ˌpɪə-/ , /ˌpɪɹiˈɑdɪk ˈteɪbəl/ , /ˌpɪɹiˈɒdɪk ˈteɪb(ə)l/
  • (chemistry) A tabular chart of the chemical elements according to their atomic numbers so that elements with similar properties are in the same group (column).
 Periodensystem
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