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CHEBI ONTOLOGY - ANNOTATIONS

The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at http://www.ebi.ac.uk/chebi/. The data is made available under the Creative Commons License (CC BY 3.0, http://creativecommons.org/licenses/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:helium-8 atom
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Accession:CHEBI:37004 term browser browse the term
Definition:The radioactive isotope of helium with relative atomic mass 8.03392 and half-life of 119.0 ms.
Synonyms:related_synonym: (8)2He;   (8)He;   Formula=[8He];   InChI=1S/He/i1+4;   InChIKey=SWQJXJOGLNCZEY-RNFDNDRNSA-N;   SMILES=[8He];   helium-8


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Path 1
Term Annotations click to browse term
  CHEBI ontology 2
    chemical entity 2
      atom 2
        s-block element atom 1
          helium atom 0
            helium-8 atom 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 2
    subatomic particle 2
      composite particle 2
        hadron 2
          baryon 2
            nucleon 2
              atomic nucleus 2
                atom 2
                  main group element atom 2
                    main group molecular entity 2
                      gas molecular entity 1
                        noble gas atom 0
                          helium atom 0
                            helium-8 atom 0
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