Page "Chemical species" Paragraph 0
from
Wikipedia
Chemical species are atoms, molecules, molecular fragments, ions, etc., subjected to a chemical process or to a measurement.
Generally, a chemical species can be defined as an ensemble of chemically identical molecular entities that can explore the same set of molecular energy levels on a characteristic or delineated time scale.
The term may be applied equally to a set of chemically identical atomic or molecular structural units in a solid array.
Page 1 of 1.
1.801 seconds.