C2-12 Ionic Bonding

Simple ions form when atoms lose or gain electrons. Which of these statements is NOT true of simple ions?

• Ions are charged particles

• Ions can be formed from single atoms or groups of atoms

• Negative ions form when atoms lose electrons

• The number of electrons lost or gained is the smae as the charge on the ion.

What is the charge on an ion from a group 1 element?

• +1

• -1

• +7

• -7

What charge will an ion from a group 7 element have?

• +1

• -1

• +7

• -7

When metals form ions they lose electrons. This means that all the ions formed by metals are ...

When non-metals form ions they gain electrons. This means that all the ions formed by metals are ...

Which answer shows the correct chemical formula for calcium hydroxide?

• CAOH

• CaOH

• Ca(OH)2

• CaOH2

Which answer shows the correct chemical formula for Sodium Carbonate?

• NACO3

• Na(CO)3

• NaCO3

• Na2CO3

What is the correct formula for Potassium Oxide?

What is the correct formula for Magnesium Bromide?

An unknown acid has the formula H3X.

What will the charge be on the X ion?