Class: actinium

http://archive.astro.umd.edu/ont/chemistry.owl#actinium

• chemicalElement
  • fundamentalChemicalElement
    • actinium
  • atom
    • fundamentalChemicalElement
      • actinium

• chemicalSubstance
  • chemicalElement
    • fundamentalChemicalElement
      • actinium
    • atom
      • fundamentalChemicalElement
        • actinium

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Superclasses