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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 19751
    subatomic particle 19749
      nuclear particle 19749
        atomic nucleus 19749
          alpha-particle 0
            helium-4 atom 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19751
    subatomic particle 19749
      composite particle 19749
        hadron 19749
          baryon 19749
            nucleon 19749
              atomic nucleus 19749
                atom 19749
                  main group element atom 19698
                    main group molecular entity 19698
                      gas molecular entity 18320
                        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