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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-205 atom
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Accession:CHEBI:37365 term browser browse the term
Definition:The radioactive isotope of polonium with relative atomic mass 204.981165 and half-life of 1.66 h.
Synonyms:related_synonym: (205)84Po;   (205)Po;   Formula=[205Po];   InChI=1S/Po/i1-4;   InChIKey=HZEBHPIOVYHPMT-AHCXROLUSA-N;   SMILES=[205Po];   polonium, isotope of mass 205;   polonium-205
 xref: CAS:16729-76-3

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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 402
    chemical entity 402
      atom 402
        metal atom 32
          polonium atom 0
            polonium-205 atom 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 402
    subatomic particle 402
      composite particle 402
        hadron 402
          baryon 402
            nucleon 402
              atomic nucleus 402
                atom 402
                  main group element atom 395
                    p-block element atom 395
                      chalcogen 350
                        polonium atom 0
                          polonium-205 atom 0
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