Definitions for "Isomers"
Compounds that have the same molecular formula but different structural formulas and properties.
Compounds with the same molecular formulas but different arrangements of atoms.
Two or more chemical compounds having the same structure but different properties.
A long-lived excited state of the nucleus. Arbitrarily defined in as the Table of Isotopes as having a half-life greater than 1 ms.
Keywords:  substances
Substances which are similar to other substances.