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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 21791
    chemical entity 21789
      atom 21777
        metal atom 18320
          polonium atom 0
            polonium-216 atom 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 21791
    subatomic particle 21777
      composite particle 21777
        hadron 21777
          baryon 21777
            nucleon 21777
              atomic nucleus 21777
                atom 21777
                  main group element atom 21694
                    p-block element atom 21694
                      chalcogen 20858
                        polonium atom 0
                          polonium-216 atom 0
paths to the root