plumiIonic bonding: Edexcel GCSE Combined Science questions
Every Edexcel GCSE Combined Science exam question on Ionic bonding (specification points 1.21–1.27), 2018–2025, with its mark scheme and examiner’s report.
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Calculations
Q4(b)(iv)
The whole paper ↗Q2(a)(i)
The whole paper ↗Q3(b)(ii)
The whole paper ↗Q2(b)(i)
The whole paper ↗Q6(a)(i)
The whole paper ↗Q2(b)(v)
The whole paper ↗Q4(d)
The whole paper ↗Q4(b)(iv)
The whole paper ↗Q2(a)(i)
The whole paper ↗Q4(b)(ii)
The whole paper ↗Q6(a)(i)
The whole paper ↗Q2(b)(v)
The whole paper ↗Q3(c)(ii)
The whole paper ↗Q4(a)
The whole paper ↗Q1(c)
The whole paper ↗Q3(c)(i)
The whole paper ↗Q5(c)
The whole paper ↗Q4(c)(i)
The whole paper ↗Q2(a)
The whole paper ↗Q2(d)
The whole paper ↗
All 25 questions on Ionic bonding, as a list
- June 2025, Chemistry Paper 2 Foundation, Q4(b)(iv) (2 marks): Lithium hydroxide contains lithium ions, Li+. Describe how a lithium atom becomes a lithium ion. (2)
- June 2024, Chemistry Paper 1 Higher, Q2(a)(i) (1 mark): The atomic number of sodium is 11. What is the electronic configuration of the Na+ ion? (1) A 1 B 2.8 C 2.8.1 D 2.8.2
- June 2024, Chemistry Paper 1 Higher, Q3(b)(ii) (1 mark): The formula of the cadmium ion is Cd2+. 3–. The formula of the phosphate ion is PO4 Which is the formula of cadmium phosphate? (1) A Cd2(PO4)3 B Cd3PO12 C Cd3(P
- June 2024, Chemistry Paper 1 Foundation, Q2(b)(i) (2 marks): Explain, in terms of electrons, how a chlorine atom, Cl, forms a chloride ion, Cl–. (2)
- June 2024, Chemistry Paper 1 Foundation, Q6(a)(i) (1 mark): The atomic number of sodium is 11. What is the electronic configuration of the Na+ ion? (1) A 1 B 2.8 C 2.8.1 D 2.8.2
- June 2024, Chemistry Paper 2 Foundation, Q2(b)(v) (1 mark): One of the salts dissolved is barium chloride, BaCl2 . Barium chloride contains the chloride ion, Cl– . Give the formula of the barium ion in barium chloride. (
- June 2023, Chemistry Paper 1 Foundation, Q4(d) (4 marks): Sodium reacts with chlorine to form sodium chloride, which contains ionic bonds. Hydrogen reacts with chlorine to form hydrogen chloride, which contains covalen
- June 2023, Chemistry Paper 2 Foundation, Q4(b)(iv) (1 mark): Sodium chloride contains sodium ions, Na+ , and chloride ions, Cl– . Use this information to state the formula of sodium chloride. (1)
- June 2022, Chemistry Paper 1 Higher, Q2(a)(i) (1 mark): The atomic number of magnesium is 12. What is the electronic configuration of the Mg2+ ion? (1) A 2 B 2.8 C 2.8.2 D 2.8.4
- June 2022, Chemistry Paper 1 Higher, Q4(b)(ii) (1 mark): The formula of the sulfate ion is SO4 2−. Which of the following is the formula of titanium sulfate containing the Ti4+ ion? (1) A TiSO4 B Ti2SO4 C Ti(SO4)2 D T
- June 2022, Chemistry Paper 1 Foundation, Q6(a)(i) (1 mark): The atomic number of magnesium is 12. What is the electronic configuration of the Mg2+ ion? (1) A 2 B 2.8 C 2.8.2 D 2.8.4
- June 2022, Chemistry Paper 2 Foundation, Q2(b)(v) (2 marks): The solid used in this experiment contained only NH4 3 ions. Give the formula and the name of the solid. (2) formula name
- November 2021, Chemistry Paper 2 Higher, Q3(c)(ii) (2 marks): Potassium oxide is ionic. Write the electronic configurations for the ions in potassium oxide, K2O. (2) potassium ion: oxide ion:
- November 2021, Chemistry Paper 2 Higher, Q4(a) (1 mark): Which of the following is the formula for calcium carbonate? (1) A CaCO2 B CaCO3 C Ca(CO)3 D Ca(CO3)2
- November 2020, Chemistry Paper 1 Higher, Q1(c) (1 mark): The ions present in sodium sulfate are Na+ sodium 2– sulfate SO4 Write the formula of sodium sulfate using this information. (1)
- November 2020, Chemistry Paper 1 Foundation, Q3(c)(i) (1 mark): Predict the formula of gallium oxide. (1)
- November 2020, Chemistry Paper 1 Foundation, Q5(c) (1 mark): The ions present in sodium sulfate are Na+ sodium 2– sulfate SO4 Write the formula of sodium sulfate using this information. (1)
- June 2019, Chemistry Paper 1 Foundation, Q4(c)(i) (1 mark): The formula of aluminium oxide is Al2O3. Give the number of ions in the formula Al2O3. (1)
- June 2019, Chemistry Paper 2 Higher, Q2(a) (1 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+? (1) pro
- June 2019, Chemistry Paper 2 Higher, Q2(d) (2 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 a
- June 2019, Chemistry Paper 2 Foundation, Q6(a) (1 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+? (1) pro
- June 2019, Chemistry Paper 2 Foundation, Q6(d) (6 marks): Sodium chloride is an ionic compound, containing sodium ions, Na+, and chloride ions, Cl–. Figure 10 shows the electronic configuration of sodium and chlorine.
- June 2018, Chemistry Paper 1 Higher, Q1(a)(ii) (2 marks): Nickel is a metal. Explain how the structure of a nickel atom, Ni, changes when it forms a nickel ion, Ni2+. (2)
- June 2018, Chemistry Paper 1 Foundation, Q3(b) (1 mark): Give the names of the elements combined in barium sulfide. (1)
- June 2018, Chemistry Paper 1 Foundation, Q5(c)(ii) (2 marks): Nickel is a metal. Explain how the structure of a nickel atom, Ni, changes when it forms a nickel ion, Ni2+. (2)
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