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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 501
    chemical entity 501
      atom 501
        s-block element atom 440
          helium atom 0
            helium-8 atom 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 501
    subatomic particle 501
      composite particle 501
        hadron 501
          baryon 501
            nucleon 501
              atomic nucleus 501
                atom 501
                  main group element atom 494
                    main group molecular entity 494
                      gas molecular entity 334
                        noble gas atom 0
                          helium atom 0
                            helium-8 atom 0
paths to the root