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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 25125
    chemical entity 25096
      atom 25087
        metal atom 19891
          polonium atom 0
            polonium-213 atom 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 25125
    subatomic particle 25087
      composite particle 25087
        hadron 25087
          baryon 25087
            nucleon 25087
              atomic nucleus 25087
                atom 25087
                  main group element atom 24966
                    p-block element atom 24966
                      chalcogen 23888
                        polonium atom 0
                          polonium-213 atom 0
paths to the root