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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(2+)
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Accession:CHEBI:33316 term browser browse the term
Definition:A monoatomic helium that has formula He.
Synonyms:related_synonym: Formula=He;   He(2+);   InChI=1S/He/q+2;   InChIKey=LBDSXVIYZYSRII-UHFFFAOYSA-N;   SMILES=[He++]


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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19874
    chemical entity 19872
      molecular entity 19872
        elemental molecular entity 17176
          monoatomic entity 16387
            monoatomic helium 0
              helium(2+) 0
                alpha-particle + 0
                helion + 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19874
    subatomic particle 19872
      composite particle 19872
        hadron 19872
          baryon 19872
            nucleon 19872
              atomic nucleus 19872
                atom 19872
                  main group element atom 19811
                    main group molecular entity 19811
                      gas molecular entity 18464
                        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
                                    helion + 0
paths to the root