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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-213 atom
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Accession:CHEBI:37343 term browser browse the term
Definition:The radioactive isotope of polonium with relative atomic mass 212.9928425 and half-life of 4.2 mus.
Synonyms:related_synonym: (213)84Po;   (213)Po;   Formula=[213Po];   InChI=1S/Po/i1+4;   InChIKey=HZEBHPIOVYHPMT-RNFDNDRNSA-N;   SMILES=[213Po];   polonium, isotope of mass 213;   polonium-213
 xref: CAS:15756-57-7

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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19812
    chemical entity 19812
      atom 19811
        metal atom 17436
          polonium atom 0
            polonium-213 atom 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19812
    subatomic particle 19811
      composite particle 19811
        hadron 19811
          baryon 19811
            nucleon 19811
              atomic nucleus 19811
                atom 19811
                  main group element atom 19710
                    p-block element atom 19710
                      chalcogen 19460
                        polonium atom 0
                          polonium-213 atom 0
paths to the root