Names and Formulas for Ionic Compounds

Front

What is an ionic compound?

Back

An ionic compound is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding. They typically form between metals and nonmetals.

Front

What is the charge of a cation?

Back

A cation is a positively charged ion.

Front

What is the charge of an anion?

Back

An anion is a negatively charged ion.

Front

How do you determine the formula for an ionic compound?

Back

To determine the formula, balance the total positive and negative charges of the ions to equal zero.

Front

What is the formula for the ionic compound formed from Na⁺ and Cl^-?

Back

NaCl (sodium chloride) is formed.

Front

What is the correct name for the compound CaO?

Back

Calcium oxide.

Front

What is the significance of valence electrons in ionic bonding?

Back

Valence electrons are the electrons in the outermost shell of an atom and are involved in forming bonds. Atoms tend to lose, gain, or share valence electrons to achieve a full outer shell.

Front

How many valence electrons does a magnesium atom have?

Back

Magnesium has 2 valence electrons.

Front

What is the formula for the ionic compound formed from Al⁺³ and O^-2?

Back

The formula is Al₂O₃.

Front

What is the name of the ion with the formula SO₄^-2?

Back

Sulfate.