Ionic Bonding (Edexcel GCSE Chemistry: Combined Science)

Exam Questions

54 mins15 questions
11 mark

Potassium reacts with chlorine to form potassium chloride.

The electronic configuration of the potassium atom is 2.8.8.1 and the electronic configuration of the chlorine is 2.8.7.

What are the electronic configurations of the ions formed?

 
      K+ Cl-
  A 2.8.8.2 2.8.7
  B 2.8.8.2 2.8.8
  C 2.8.8 2.8.7
  D 2.8.8 2.8.8

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2a1 mark

An aluminium atom has the atomic number 13 and the mass number 27.

Which row shows the numbers of subatomic particles present in an aluminium ion, Al3+

      protons neutrons electrons
  A 13 14 13
  B 13  14 10
  C 14 13 10
  D 14  13 17

  

2b
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3 marks

Magnesium burns in excess oxygen to form magnesium oxide.

The balanced equation for this reaction is

 
2Mg + O2 → 2MgO
 

Starting with 1.35 g of magnesium, calculate the maximum mass of magnesium oxide that could be formed in this reaction.

(relative atomic masses: O = 16.0, Mg = 24.0)

 

You must show your working.

 
mass of magnesium oxide = .............................. g
2c3 marks

Chlorine reacts with hydrogen to form hydrogen chloride.

Write the balanced equation for this reaction.

 
2d6 marks

Sodium chloride is an ionic compound, containing sodium ions, Na+, and chloride ions, Cl.

Figure 15 shows the electronic configuration of sodium and chlorine.

 
  electron configuration
sodium 2.8.1
chlorine 2.8.7
 
Figure 15
 

Explain how sodium and chlorine atoms form the ions in sodium chloride and how the ions are arranged in the solid sodium chloride. 

You may wish to use diagrams in your answer.

 
2e2 marks

Sodium reacts with chlorine to form sodium chloride.

The electronic configuration of the sodium atom is 2.8.1 and the electronic configuration of the chlorine atom is 2.8.7.

Give the electronic configurations of the ions formed.

Na+ ...............................................
 
Cl–    ...............................................

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31 mark

Ionic compounds contain ions.

The numbers of electrons, neutrons and protons in four particles A, B, C and D are shown below.

Which one is the negative ion?

 
    particle electrons neutrons protons
  A 6 6 6
  B 10 12 11
  C 10 14 13
  D 18 20 17

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41 mark

The structure of an ionic compound, sodium chloride, is a lattice structure.

Which of the following statements about an ionic lattice structure is not true?

 
  A There is a regular arrangement of ions in the lattice
  B The layers of ions slide over each other easily in the lattice
  C The ions are arranged with alternating anions and cations
  D Strong electrostatic forces of attraction occur between oppositely charged ions

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5a2 marks

The name of an ionic compound can be used to deduce its formula.

Draw one straight line from each name of an ionic compound to its correct formula.

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5b1 mark

What is meant by the term ion?

5c3 marks

When sodium and chlorine react together, they form the ionic compound, sodium chloride.

Use words from the box to complete the sentences about how sodium chloride is formed.

lose   electrostatic   negative  
  positive   gain  

intermolecular    

Sodium atoms ...................... one electron to form ...................... ions and chlorine atoms ...................... one electron to form ...................... ions. There are ...................... forces of attraction between the oppositely charged ions which hold the compound together.

5d1 mark

Which substance does not have ionic bonding?

  A lithium sulfide
  B calcium carbonate
  C carbon dioxide
  D magnesium oxide

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