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The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at The data is made available under the Creative Commons License (CC BY 3.0, For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.

Term:polonium-216 atom
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Accession:CHEBI:37346 term browser browse the term
Definition:The radioactive isotope of polonium with relative atomic mass 216.001905 and half-life of 0.145 s.
Synonyms:related_synonym: (216)84Po;   (216)Po;   Formula=[216Po];   InChI=1S/Po/i1+7;   InChIKey=HZEBHPIOVYHPMT-RKEGKUSMSA-N;   SMILES=[216Po];   polonium, isotope of mass 216;   polonium-216
 xref: CAS:15756-58-8;   Gmelin:41684

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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19795
    chemical entity 19795
      atom 19794
        metal atom 17427
          polonium atom 0
            polonium-216 atom 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19795
    subatomic particle 19794
      composite particle 19794
        hadron 19794
          baryon 19794
            nucleon 19794
              atomic nucleus 19794
                atom 19794
                  main group element atom 19693
                    p-block element atom 19693
                      chalcogen 19445
                        polonium atom 0
                          polonium-216 atom 0
paths to the root