Naming Ionic Compounds

Multiple Choice

Which of the following is a new vocabulary term related to naming ionic compounds?

• Nonmetal

• Physical property

• Formula unit

• Covalent bond

Multiple Choice

What is the charge of a cation in an ionic compound?

• Positive

• Negative

• Neutral

• Variable

Multiple Select

Which of the following statements about oxidation numbers are incorrect?

• The oxidation number equals the number of electrons transferred to form the ion.

• Metal atoms lose electrons and become cations.

• Non-metal atoms gain electrons and become anions.

• Transition elements always have a single oxidation state.

Open Ended

Explain how the transfer of electrons between sodium and chlorine leads to the formation of NaCl, including the resulting charges on each ion.

Multiple Choice

What is the correct order of steps when writing an ionic compound formula?

• Write symbols, write valences, drop charges, criss cross, reduce ratio

• Write valences, write symbols, drop charges, criss cross, reduce ratio

• Write symbols, drop charges, write valences, criss cross, reduce ratio

• Write symbols, write valences, criss cross, drop charges, reduce ratio

Fill in the Blanks

A formula unit represents the simplest ratio of the ions involved in an ionic compound, such as Na+ and

.

Multiple Choice

What is the formula for the ionic compound formed from potassium and oxygen?

• K₂O

• KO₂

• K₂O₂

• KO

Multiple Choice

What is the correct formula for the compound formed from aluminium ions and sulphide ions?

• Al₂S₃

• AlS₂

• Al₃S₂

• AlS₃

Fill in the Blanks

The formula for ammonium oxide is

.

Multiple Select

Which of the following statements are NOT true about polyatomic ions?

• They are made up of more than one atom.

• Their charge applies to the entire group of atoms.

• Their subscripts should never be changed within the ion.

• They always have a positive charge.

Multiple Select

Select all the ions that are polyatomic ions from the list below:

• NH₄⁺

• NO^3-

• Cl^-

• SO₄^2-

Multiple Choice

Which suffix is used for the ion with more oxygen atoms in an oxyanion pair?

• -ate

• -ite

• -ide

• -ous

Fill in the Blanks

The formula for the bromate ion is

.

Multiple Choice

Which prefix and suffix are used when naming an oxyanion with the greatest number of oxygen atoms?

• per- and -ate

• hypo- and -ite

• per- and -ite

• hypo- and -ate

Open Ended

Explain the steps involved in naming an ionic compound when the cation can have more than one oxidation number.