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The smallest repeating unit of a substance. The molecule for nonionic substances

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Wild patina, is it so bad?

Usually this kind of patina appears on monuments. The most striking example is the Statue of Liberty in New York.

Dumas Method

A method used to determine the molecular weights of volatile liquids.

Fluids

Substances that flow freely, gases and liquids.

Hydrogen Bond

A fairly strong dipole-dipole interaction (but still considerably weaker than the covalent or ionic bonds) between molecules containing hydrogen directly bonded to a small, highly electronegative atom, such as N, O, or F.

Hydrophilic Colloids

Colloidal particles that repel water molecules.

Outer Orbital Complex

Valence bond designation for a complex in which the metal ion utilizes d orbitals in the outermost (occupied) shell in hybridization.

Mixture

A sample of matter composed of two or more substances, each of which retains its identity and properties.

Metalloids

Elements with properties intermediate between metals and nonmetals: B, Al, Si, Ge, As, Sb, Te, Po, and At.

Ionization Isomers

Isomers that result from the interchange of ions inside and outside the coordination sphere.

Ionization

In aqueous solution, the process in which a molecular compound reacts with water and forms ions.