Ionic Compounds and Their Formulas

Flashcards covering key concepts and vocabulary related to ionic charges and the formation of ionic compounds.

Ionic Charge

The electrical charge associated with ions, determined by the loss or gain of electrons.

Criss Cross Method

A technique used to determine the formula of an ionic compound by crossing the charges of the ions.

HCI

Hydrochloric acid, a strong acid formed from hydrogen and chloride ions.

NH4

The ammonium ion, which has a positive charge and consists of one nitrogen atom and four hydrogen atoms.

PO4

The phosphate ion, a polyatomic ion composed of one phosphorus atom surrounded by four oxygen atoms.

Sr(OH)2

Strontium hydroxide, a chemical compound formed from strontium and hydroxide ions.

CO3

The carbonate ion, a negatively charged polyatomic ion composed of one carbon atom and three oxygen atoms.

NO3

The nitrate ion, a polyatomic ion consisting of one nitrogen atom and three oxygen atoms.

HCO3

The bicarbonate ion, a negatively charged ion that can act as both an acid and a base.

OH

The hydroxide ion, a negatively charged ion consisting of one oxygen atom and one hydrogen atom.