Answer:
an atom that has gained or lost electrons -ION
produces OH ions when added to water -BASE
produces H' ions when added to water-ACID
Step-by-step explanation:
An ion is an electrically charged particle that is formed by the loss or gain of electrons. Elements lose or gain an electron in order to attain stability forming ions.
Bases are the substances that produce hydroxide ions (OH-) when added to an aqueous solution or water. This is because the compounds contain a hydroxyl.
Acids are the substances which produce hydrogen ions( H+) when added in an aqueous solution or water. This is because the compounds contain hydrogen ions.