Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Chapter
The Periodic Table
103 practice questions
Topics covered
- The arrangement of the electrons in an atom19 practice questions
- Drawing diagrams of electronic configurations19 practice questions
- Electronic configurations and the periodic table19 practice questions
- Metals and non-metals in the periodic table18 practice questions
- Differences between the properties of metals and non-metals19 practice questions
Practice questions
101–103 of 103
Question 101
6 marks · Normal
Answer and see the solution →This question is about explaining group trends and the inertness of Group 0 elements using the idea of electronic configuration.
(a)[2 marks]State how the electronic configuration of chlorine is related to its position in the Periodic Table.
(b)[2 marks]Explain why all the elements in Group 1 react similarly when placed in water.
(c)[2 marks]Group 0 (the noble gases) are found at the far right of the Periodic Table.
Explain why the noble gases are so unreactive.
Question 102
7 marks · Hard
Answer and see the solution →This question is about electronic configurations and differences in electrical conductivity between metals and non-metals.
(a)[2 marks]Draw a diagram to show the electronic configuration of the element with atomic number 6. Use shells and electrons as dots or crosses.
(b)[2 marks]Element X has the electronic configuration 2,8,1. Identify whether X is a metal or a non-metal. Explain your answer based on its electronic configuration.
(c)[2 marks]Describe how the electrical conductivity of sodium compares to that of sulfur. Give a reason for your answer linked to their electronic structures.
(d)[1 mark]Name one exception among non-metals that can conduct electricity and explain why it is an exception.
Question 103
8 marks · Hard
Answer and see the solution →This question is about the arrangement of electrons in atoms and the physical properties of metals and non-metals.
(a)[2 marks]Draw a diagram to show the electronic configuration of an atom of nitrogen (atomic number 7) using shells and dots or crosses to represent electrons.
(b)The atomic number of magnesium is 12, and the atomic number of oxygen is 8. Both elements are found in the same period of the Periodic Table.
(i)[1 mark]State whether magnesium is a metal or a non-metal.
(ii)[1 mark]State whether oxygen is a metal or a non-metal.
(c)[2 marks]Describe two physical properties that can be used to distinguish a typical metal such as magnesium from a typical non-metal such as oxygen.
(d)[2 marks]Name one exception to the typical properties of metals or non-metals, as described in this question.