- Physical Sciences
The empirical formula of an ionic compound or a covalent network (macro-molecule) structure. To be used as an independent entity for stoichiometric equations.
the radius of an atom from the nucleus to the outermost electrons.
dealing with quantities as well as the nature of the substances under consideration.
the electrons in the outermost occupied shell of an atom.
those properties that can change without changing the chemical nature of a substance.