D011886Level 5

Radon

**Definition:** A naturally radioactive element with atomic symbol Rn, and atomic number 86. It is a member of the noble gas family found in soil, and is released during the decay of RADIUM.

**Tree numbers:** - D01.268.271.800 - D01.268.613.700 - D01.362.641.745 - D01.496.749.305.800

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D017687Radon Daughters

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