Chemistry

The compositions and structure of molecules

Materials: 9

Relative abundance of related chemical monomers and compounds

Materials: 6

Preferential abundance of structural or spatial isomers

Materials: 2

Concerns the comparative abundances of elements

Materials: 2

Relative abundance of isotopes between or within molecules

Materials: 6

Features of crystalline substances such as crystal structure, mineral impurities, and grain size distributions.

Materials: 2

Physicochemical constraints

Materials: 3