of an element
https://doi.org/10.1351/goldbook.CT06859
Specific form of an element defined as to isotopic composition, electronic or @O04365@, and/or complex or molecular structure.
See also:
chemical species
Source:
PAC, 2004, 76, 1033. (Glossary of terms used in toxicokinetics (IUPAC Recommendations 2003)) on page 1044 [Terms] [Paper]