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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 19922
    subatomic particle 19892
      nuclear particle 19920
        atomic nucleus 19892
          alpha-particle 0
            helium-4 atom 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19922
    subatomic particle 19892
      composite particle 19892
        hadron 19920
          baryon 19892
            nucleon 19920
              atomic nucleus 19892
                atom 19892
                  main group element atom 19866
                    main group molecular entity 19838
                      gas molecular entity 18503
                        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