Worksheet: Ionic Bonding

In this worksheet, we will practice describing ionic bonds in terms of the electrostatic attraction between ions of opposite charge.

Q1:

Which of the following types of structure is formed when anions and cations bond together?

  • AAlternating layers of cations and anions
  • BInteracting clusters of cations and anions
  • CInteracting clusters of neutral atoms
  • DA lattice of neutral atoms
  • EA lattice of alternating cations and anions

Q2:

Listed in the table are a range of anions and cations commonly found in salts.

AnionsO2ClAs3
CationsLi+Mg2+Al3+

Which anion and cation in the table would attract each other most strongly?

  • AAs3 and Al3+
  • BO2 and Mg2+
  • CCl and Li+
  • DAs3 and Li+
  • ECl and Al3+

Which anion and cation in the table would attract each other least strongly?

  • AAs3 and Li+
  • BAs3 and Al3+
  • CCl and Al3+
  • DO2 and Mg2+
  • ECl and Li+

Q3:

Consider the anions and cations listed in the table.

AnionsFClBrI
CationsLi+Na+K+Rb+

Which anion-cation pair would produce the strongest ionic bond?

  • AI and Li+
  • BF and Li+
  • CF and Rb+
  • DCl and Na+
  • EI and Rb+

Which anion-cation pair would produce the weakest ionic bond?

  • AI and Rb+
  • BF and Rb+
  • CF and Li+
  • DI and Li+
  • ECl and Na+

Q4:

Why is the formula for sodium chloride NaCl, but the formula for magnesium chloride is MgCl2?

  • AChlorine forms a 1 ion, so it requires two magnesium ions to form an electrically neutral compound.
  • BMagnesium forms +2 ions, so it requires one chloride ion to form an electrically neutral compound.
  • CChlorine forms 2 ions, so it requires two magnesium ions to form an electrically neutral compound.
  • DMagnesium forms +2 ions, so it requires two chloride ions to form an electrically neutral compound.
  • EMagnesium forms a +1 ion, so it requires two chloride ions to form an electrically neutral compound.

Q5:

Which of these statements explains why atoms of neon do not form ionic bonds?

  • AAtoms of neon have delocalized electrons.
  • BAtoms of neon must gain or lose four electrons to form a stable octet in their outer shell.
  • CAtoms of neon already have a stable octet in their outer shell.
  • DAtoms of neon form dense, metallic structures instead.
  • EAtoms of neon share electrons to form covalent structures.

Q6:

Which electron dot diagram shows the correct structure for sodium oxide?

  • A
  • B
  • C
  • D
  • E

Q7:

In which of the following scenarios is an ionic substance conductive?

  • AWhen it is molten
  • BWhen it contains a mixture of different ions
  • CWhen it is freshly made
  • DWhen it is broken into very small pieces
  • EWhen it is cooled with liquid nitrogen

Q8:

A representation of the structure of sodium chloride is shown below.

What is the formula unit for sodium chloride?

  • ANaCl22
  • BNaCl45
  • CNaCl2
  • DNaCl2
  • ENaCl

Which of the following is a disadvantage of using this type of representation for ionic structures?

  • AThe ionic bonds between each ion can be seen.
  • BThe size of the ions and distances between them are not correct.
  • CIt shows the 3D structure of the ions in the lattice.
  • DIt shows the arrangement of the ions in the lattice.
  • EThe ratio of positively charged to negatively charged ions can be determined.

Q9:

An ionic compound is made from a metal, M, and a nonmetal, X. The electron dot diagrams for M and X are shown below. Which of the following molecular formulas will the ionic compound have?

MX
  • AMX23
  • BMX2
  • CMX
  • DMX3
  • EMX2

Q10:

The bar chart below shows the melting points of three ionic compounds. Which of the following assignments is correct?

  • AA: MgF2
    B: MgO
    C: NaF
  • BA: MgO
    B: NaF
    C: MgF2
  • CA: NaF
    B: MgF2
    C: MgO
  • DA: MgO
    B: MgF2
    C: NaF
  • EA: NaF
    B: MgO
    C: MgF2

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