Chemicals and Drugs

Radon

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.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

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.

Chemical Identity

Chemical Information

Molecular Formula
Rn
Molecular Weight
222.01758 g/mol
CAS Registry No.
10043-92-2
IUPAC Name
radon
InChIKey
SYUHGPGVQRZVTB-UHFFFAOYSA-N
SMILES
[Rn]
MeSH Unique ID
D011886
Source
PubChem CID 24857

MeSH Record

Classification

Narrower headings

Related Concepts

Knowledge Graph

Loading graph…

Drag nodes to rearrange; hover to trace links; click a node to open its page.

Drug Class

Pharmacological Action

MeSH Record

See Also

MeSH Record

Synonyms

2 entry terms
  • Actinon
  • Thoron (Element)

MeSH Record

Aspects Covered

19 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, analysis, blood, cerebrospinal fluid, chemistry, classification, economics, history, isolation & purification, metabolism, pharmacokinetics, pharmacology, poisoning, standards, supply & distribution, therapeutic use, toxicity, urine.

MeSH Record

Indexing Annotation

RADON DAUGHTERS is also available

MeSH Record

History Note

ACTINON was see RADON 1978-93; THORON (ELEMENT) was (NM) 1974-93

MeSH Hierarchy

Tree Numbers

AMA Style

References

  1. National Library of Medicine. Radon. Medical Subject Headings (MeSH). 2026. Unique ID D011886. http://id.nlm.nih.gov/mesh/2026/D011886
  2. Radon. In: Wikipedia. https://en.wikipedia.org/wiki/Radon
  3. Radon. In: Wikidata. https://www.wikidata.org/wiki/Q1133
  4. Radon. In: PubChem Compound. CID 24857. https://pubchem.ncbi.nlm.nih.gov/compound/24857