Understanding Ionic Formulas

What is the correct ionic formula for sodium chloride?

• NaCl

• Na2Cl

• Na2Cl2

• NaCl2

In the structure of sodium chloride, what type of bonding holds the ions together?

• Metallic bonding

• Hydrogen bonding

• Covalent bonding

• Ionic bonding

What is the ratio of sodium ions to chloride ions in sodium chloride?

• 2:1

• 1:2

• 1:1

• 2:2

What is the ionic formula for calcium fluoride?

• Ca2F

• Ca2F2

• CaF2

• CaF

In calcium fluoride, how many fluoride ions are needed to balance one calcium ion?

• Three

• Two

• One

• Four