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The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at The data is made available under the Creative Commons License (CC 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.

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Accession:CHEBI:30582 term browser browse the term
Definition:An elemental silicon that has formula Si.
Synonyms:exact_synonym: silicon(1+) ion;   silicon(I) cation
 related_synonym: Formula=Si;   InChI=1S/Si/q+1;   InChIKey=FSLGCYNKXXIWGJ-UHFFFAOYSA-N;   SMILES=[Si+];   Si(+);   Silicon cation
 xref: CAS:14067-07-3

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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19727
    chemical entity 19725
      molecular entity 19725
        ion 16462
          monoatomic ion 15666
            monoatomic cation 14687
              monoatomic monocation 11880
                silicon(1+) 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19727
    subatomic particle 19725
      composite particle 19725
        hadron 19725
          baryon 19725
            nucleon 19725
              atomic nucleus 19725
                atom 19725
                  main group element atom 19673
                    p-block element atom 19673
                      p-block molecular entity 19673
                        carbon group molecular entity 19618
                          silicon molecular entity 5723
                            elemental silicon 0
                              silicon(1+) 0
paths to the root