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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:alpha-particle
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Accession:CHEBI:30216 term browser browse the term
Definition:Nucleus of the (4)He atom.
Synonyms:exact_synonym: helium-4(2+)
 related_synonym: (4)He(2+);   Formula=[4He];   InChI=1S/He/q+2/i1+0;   InChIKey=LBDSXVIYZYSRII-IGMARMGPSA-N;   SMILES=[4He++];   alpha
 xref: Gmelin:53474



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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 20841
    subatomic particle 20839
      nuclear particle 20839
        atomic nucleus 20839
          alpha-particle 0
            helium-4 atom 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 20841
    subatomic particle 20839
      composite particle 20839
        hadron 20839
          baryon 20839
            nucleon 20839
              atomic nucleus 20839
                atom 20839
                  main group element atom 20762
                    main group molecular entity 20762
                      gas molecular entity 18906
                        noble gas atom 46
                          noble gas molecular entity 6
                            helium molecular entity 0
                              elemental helium 0
                                monoatomic helium 0
                                  helium(2+) 0
                                    alpha-particle 0
                                      helium-4 atom 0
paths to the root