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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 atom
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Accession:CHEBI:30217 term browser browse the term
Definition:A s-block element atom that has formula He.
Synonyms:related_synonym: 2He;   Formula=He;   He;   InChI=1S/He;   InChIKey=SWQJXJOGLNCZEY-UHFFFAOYSA-N;   SMILES=[He];   helio;   helium
 xref: CAS:7440-59-7;   Drug_Central:4262;   Gmelin:16294;   WebElements:He


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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 498
    chemical entity 498
      atom 498
        s-block element atom 437
          helium atom 0
            helium molecular entity + 0
            helium-3 atom 0
            helium-4 atom 0
            helium-6 atom 0
            helium-8 atom 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 498
    subatomic particle 498
      composite particle 498
        hadron 498
          baryon 498
            nucleon 498
              atomic nucleus 498
                atom 498
                  main group element atom 491
                    main group molecular entity 491
                      gas molecular entity 333
                        noble gas atom 0
                          helium atom 0
                            helium molecular entity + 0
                            helium-3 atom 0
                            helium-4 atom 0
                            helium-6 atom 0
                            helium-8 atom 0
paths to the root