Periodic Table of Elements

Element Radon - Rn

Comprehensive data on the chemical element Radon is provided on this page; including scores of properties, element names in many languages, most known nuclides of Radon. Common chemical compounds are also provided for many elements. In addition technical terms are linked to their definitions and the menu contains links to related articles that are a great aid in one's studies.

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Overview of Radon

Radon's Name in Other Languages

  • Latin: Radon
  • Czech: Radon
  • Croatian: Radon
  • French: Radon
  • German: Radon - r
  • Italian: Radon
  • Norwegian: Radon
  • Portuguese: Radônio
  • Russian: Радон
  • Spanish: Radón
  • Swedish: Radon

Atomic Structure of Radon

Chemical Properties of Radon

Physical Properties of Radon

Regulatory / Health

  • CAS Number
    • 10043-92-2
  • NFPA 704
    • Health:
    • Fire:
    • Reactivity:
    • Special Hazard: Radioactive<
    • OSHA Permissible Exposure Limit (PEL)
      • No limits set by OSHA
    • OSHA PEL Vacated 1989
      • No limits set by OSHA
    • NIOSH Recommended Exposure Limit (REL)
      • No limits set by NIOSH
    • Levels In Humans:
      Note: this data represents naturally occuring levels of elements in the typical human, it DOES NOT represent recommended daily allowances.
      • Blood/mg dm-3: virtually nil
      • Bone/p.p.m: virtually nil
      • Liver/p.p.m: virtually nil
      • Muscle/p.p.m: virtually nil
      • Daily Dietary Intake: nil
      • Total Mass In Avg. 70kg human: virtually nil

    Who / Where / When / How

    • Discoverer: Fredrich Ernst Dorn
    • Discovery Location: Halle Germany
    • Discovery Year: 1900
    • Name Origin:
      Named after the element radium
    • Abundance of Radon:
      • Earth's Crust/p.p.m.: N/A
      • Seawater/p.p.m.: 1E-14
      • Atmosphere/p.p.m.: 1E-15
      • Sun (Relative to H=1E12): N/A
    • Sources of Radon:
      Formed from the decay of radium in the earth's crust.
    • Uses of Radon:
      Used to treat some forms of cancer, also used in earthquake prediction.
    • Additional Notes:
      Radon is a health threat in homes built on granite and radon detectors should be used in the basement of homes. High radon levels can often be mitigated by utilizing ventilation.

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    A list of reference sources used to compile the data provided on our periodic table of elements can be found on the main periodic table page.

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