Radon-222

(222)86Rn
(222)Rn
radon, isotope of mass 222

Property	Value
Decay mode chemrof:decay_mode	α=100%
Elemental charge chemrof:elemental_charge	0
Half life chemrof:half_life	0.010462696783025324
Has element chemrof:has_element	{'@id': 'https://vocab.brightway.dev/flow-objects/fo-37b91965500c706c'}
InChI2D key string chemrof:inchi2d_key_string	SYUHGPGVQRZVTB-IGMARMGPSA-N
InChI2D string chemrof:inchi2d_string	InChI=1S/Rn
Isotope isotope	{"nuclide":"222Rn","mass_number":222,"atomic_mass_and_uncertainty_u":"222.017576017 ± 0.000002086","half_life_and_uncertainty":"3.8215 d ± 0.0002","decay_modes":"α=100%","discovery_year":"1899","specific_activity_bq_per_g":"5.6932709915866e+15","specific_activity_bq_per_g_value":5693270991586600.0,"half_life_chemlin":"3.8222(9) d","chemlin_url":"https://www.chemlin.org/isotope/radon-222","isomer_resolution":{"wanted_nuclide":"Rn-222","expected_half_life_days":3.8215,"attempted_slugs":["222"],"attempted_urls":["https://www.chemlin.org/isotope/radon-222"],"strategy":"half_life_agrees_with_pubchem","selected_slug":"radon-222","selected_half_life":"3.8222(9) d","selected_half_life_days":3.8222,"half_life_ratio_to_pubchem":1.0001831741462777,"alternates":[]},"symbol":"Rn","isomeric_state":"","metastable":false}
Isotope lookup isotope_lookup	{"is_kbq_candidate":true,"matched":true,"matched_on":"Radon-222","claimed_nuclide":"Rn-222","resolved_nuclide":"Rn-222","state_resolution":{"claimed_state":"","selected_state":"","strategy":"state_taken_as_written","candidates":[]},"checks":[{"check":"ground_state_does_not_decay_by_isomeric_transition","passed":true,"detail":"α=100%"},{"check":"half_life_sources_agree","passed":true,"detail":{"pubchem_days":3.8215,"chemlin_days":3.8222,"ratio":1.0001831741462777}}],"reason":"","source":"pubchem_pug_view_annotation_heading","sources":["pubchem_pug_view_annotation_heading","https://www.chemlin.org"],"isomer_resolution":{"wanted_nuclide":"Rn-222","expected_half_life_days":3.8215,"attempted_slugs":["222"],"attempted_urls":["https://www.chemlin.org/isotope/radon-222"],"strategy":"half_life_agrees_with_pubchem","selected_slug":"radon-222","selected_half_life":"3.8222(9) d","selected_half_life_days":3.8222,"half_life_ratio_to_pubchem":1.0001831741462777,"alternates":[]}}
IUPAC name chemrof:IUPAC_name	radon(0)
Molecular formula chemrof:molecular_formula	Rn, [222Rn]
Molecular mass chemrof:molecular_mass	222.0, 222.018
Monoisotopic mass chemrof:monoisotopic_mass	222.01757, 222.017571, 222.017578, 222.01758
Nucleon number chemrof:nucleon_number	222
Relationships relationships	{"parent_element_flow_object_id":"fo-37b91965500c706c","relationship_type":"isotope_of"}
SMILES string chemrof:smiles_string	[Rn]
Symbol chemrof:symbol	Rn

Where else this substance is described. Collected while the pipeline resolved it — from ChEBI's cross-references, from PubChem's identifier list, and from the CAS number — so a link here is a record the merge actually read, not a search it suggests.

Resource	URL	Recorded by
CAS Common Chemistry	https://commonchemistry.cas.org/detail?cas_rn=14859-67-7	enrich_references.chebi_xrefs
ChEBI	https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:33492	enrich_references.chebi_id_link
ChEBI	https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:49997	enrich_references.chebi_id_link
ChemLin	https://www.chemlin.org	—
ChemLin	https://www.chemlin.org/isotope/radon-222	—
comptox.epa.gov	https://comptox.epa.gov/dashboard/DTXSID7024295	enrich_references.pubchem_identifier_url
gsrs.ncats.nih.gov	https://gsrs.ncats.nih.gov/ginas/app/beta/substances/3Z30NQN07C	enrich_references.pubchem_identifier_url
KEGG	https://www.genome.jp/entry/C16454	enrich_references.chebi_xrefs
kegg.jp	https://www.kegg.jp/entry/C16454	enrich_references.pubchem_identifier_url
molbase	molbase:927	enrich_references.chebi_xrefs
PubChem	https://pubchem.ncbi.nlm.nih.gov/compound/61773	enrich_references.pubchem_compound
PubChem	https://pubchem.ncbi.nlm.nih.gov/element/86	—
PubChem	https://pubchem.ncbi.nlm.nih.gov/rest/pug_view/data/element/86/JSON	—
PubMed	https://pubmed.ncbi.nlm.nih.gov/19822438	enrich_references.chebi_xrefs
PubMed	https://pubmed.ncbi.nlm.nih.gov/20494496	enrich_references.chebi_xrefs
PubMed	https://pubmed.ncbi.nlm.nih.gov/21062804	enrich_references.chebi_xrefs
PubMed	https://pubmed.ncbi.nlm.nih.gov/21555169	enrich_references.chebi_xrefs
PubMed	https://pubmed.ncbi.nlm.nih.gov/21778159	enrich_references.chebi_xrefs
PubMed	https://pubmed.ncbi.nlm.nih.gov/22105600	enrich_references.chebi_xrefs
PubMed	https://pubmed.ncbi.nlm.nih.gov/22115433	enrich_references.chebi_xrefs
reaxys	reaxys:14738348	enrich_references.chebi_xrefs
wikidata.org	https://www.wikidata.org/wiki/Q27258231	enrich_references.pubchem_identifier_url
Wikipedia	https://en.wikipedia.org/wiki/Radon	enrich_references.chebi_xrefs

Flow	Context	Source	Unit	CFs
32cd21a4-6556-11dd-ad8b-0800200c9a66	Environmental → Air → Aircraft cruise height	EF 3.1	kBq	1
fe0acd60-3ddc-11dd-abb2-0050c2490048	Environmental → Air → Ground level → Urban (>1000 people/square mile)	EF 3.1	kBq	1
fe0acd60-3ddc-11dd-abb1-0050c2490048	Environmental → Air → Long-term	EF 3.1	kBq	1
fe0acd60-3ddc-11dd-abb3-0050c2490048	Environmental → Air → Medium stack, <150 meters → Rural (<1000 people/square mile)	EF 3.1	kBq	1
fe0acd60-3ddc-11dd-abb0-0050c2490048	Environmental → Air → Unknown	EF 3.1	kBq	1
32cd21a2-6556-11dd-ad8b-0800200c9a66	Environmental → Ground → Agricultural	EF 3.1	kBq	0
32cd21a5-6556-11dd-ad8b-0800200c9a66	Environmental → Ground → Non-agricultural	EF 3.1	kBq	0
32cd21a7-6556-11dd-ad8b-0800200c9a66	Environmental → Ground → Unknown	EF 3.1	kBq	0
32cd21a9-6556-11dd-ad8b-0800200c9a66	Environmental → Water → Long-term	EF 3.1	kBq	0
32cd21a6-6556-11dd-ad8b-0800200c9a66	Environmental → Water → Ocean	EF 3.1	kBq	0
32cd21a3-6556-11dd-ad8b-0800200c9a66	Environmental → Water → Surface water	EF 3.1	kBq	0
32cd21a8-6556-11dd-ad8b-0800200c9a66	Environmental → Water → Unknown	EF 3.1	kBq	0

Everything that changed this substance (52 changes)

Open the changes page

Flow object JSON

{
  "flow_object_id": "fo-1f4ed9daa1d01eeb",
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    {
      "@value": "Radon-222",
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  "altLabel": [
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    {
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    "isotope_lookup": {
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      "state_resolution": {
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      "isomeric_state": "",
      "metastable": false
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Radon-222

Identity

Structure

Alternative labels

Properties

Known URLs

Elementary flows

History

Full record

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