Glossary of Chemistry Terms - I

I

• indicator - a special compound added to solution that changes color depending on the acidity of the solution; different indicators have different colors and effective pH ranges
• inorganic compound - compounds that do not contain carbon, though there are exceptions (see main article)
• inorganic chemistry - a part of chemistry concerned with inorganic compounds
• International Union of Pure and Applied Chemistry (IUPAC) -
• insulator - material that resists the flow of electric current
• ion - a molecule that has gained or lost one or more electrons
• ionic bond - electrostatic attraction between oppositely charged ions
• ionization -The breaking up of a compound into separate ions.