Ions and Ionic Compounds REDUX

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

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.

Front

What is the charge of aluminum in Al₂O₃?

Back

The charge of aluminum in Al₂O₃ is +3.

Front

What is the charge of oxygen in Al₂O₃?

Back

The charge of oxygen in Al₂O₃ is -2.

Front

How do you determine the formula of an ionic compound?

Back

To determine the formula of an ionic compound, balance the total positive and negative charges of the ions.

Front

What is the formula for potassium sulfide?

Back

The formula for potassium sulfide is K₂S.

Front

What is the formula for sodium chloride?

Back

The formula for sodium chloride is NaCl.

Front

What is the formula for aluminum fluoride?

Back

The formula for aluminum fluoride is AlF₃.

Front

What is the formula for lithium oxide?

Back

The formula for lithium oxide is Li₂O.

Front

What is the significance of subscripts in chemical formulas?

Back

Subscripts indicate the number of atoms of each element in a compound.