Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Unit
Principles of Chemistry
991 practice questions
Topics covered
- States of Matter102 practice questions
- Elements, Compounds and Mixtures69 practice questions
- Atomic Structure108 practice questions
- The Periodic Table103 practice questions
- Chemical Formulae, Equations and Calculations Part 119 practice questions
- Chemical Formulae, Equations and Calculations Part 2144 practice questions
- Ionic Bonding143 practice questions
- Covalent Bonding68 practice questions
- Metallic Bonding19 practice questions
- Electrolysis198 practice questions
Practice questions
341–350 of 991
Question 341
1 mark · Easy
Answer and see the solution →State whether chlorine is a metal or a non-metal, based on its position in the periodic table.
Question 342
3 marks · Easy
Answer and see the solution →This question is about group trends in the periodic table.
(a)[1 mark]State how many electrons a typical Group 7 element has in its outer shell.
(b)[2 marks]Explain why the elements fluorine and bromine have similar chemical properties.
Question 343
2 marks · Easy
Answer and see the solution →An oxide of aluminium (Al) reacts with hydrochloric acid to produce 27 grams of aluminium chloride. Given the information below, use the periodic table and your knowledge of metals and oxides to calculate the number of moles of aluminium chloride formed. (Al = 27, Cl = 35.5)
Question 344
2 marks · Normal
Answer and see the solution →State whether each of the following elements is a metal or a non-metal. Explain how you decided in each case.
(a)[1 mark]Sodium (Na)
(b)[1 mark]Sulfur (S)
Question 345
4 marks · Normal
Answer and see the solution →This question is about group trends in the periodic table.
(a)[1 mark]Describe how the electronic configurations of chlorine and bromine are similar.
(b)[1 mark]Group 7 elements react with hydrogen to form compounds such as hydrogen chloride and hydrogen bromide. State one similarity in the formulae of these compounds.
(c)[2 marks]Explain why elements in the same group have similar chemical properties.
Question 346
3 marks · Normal
Answer and see the solution →Explain why the elements in Group 0 (the noble gases) are very unreactive. Your answer should refer to electronic structure.
Question 347
4 marks · Normal
Answer and see the solution →The table shows whether certain oxides are basic, acidic, or amphoteric.
Character of some element oxides Element Oxide formula Type of oxide Sodium \ce{Na2O} Silicon \ce{SiO2} Aluminium \ce{Al2O3} Sulfur \ce{SO2} a) Complete the table by identifying the type of oxide for each element. [2]
b) Explain how the type of oxide can help you classify each element as a metal or non-metal. [2]
Question 348
1 mark · Normal
Answer and check →Which statement correctly explains the similarity in chemical properties between lithium and potassium?
- A.They are both in Group 1 and have the same number of outer-shell electrons.
- B.They are both metals and have atoms with the same atomic mass.
- C.They each form oxides that are acidic.
- D.They are both in the same period of the periodic table.
Question 349
2 marks · Normal
Answer and see the solution →State two differences between metals and non-metals as found in the periodic table or their oxides.
Question 350
4 marks · Normal
Answer and see the solution →This question is about the inertness of noble gases and group similarities.
(a)[2 marks]State the number of electrons in the outer shell for neon and argon.
(b)[2 marks]Explain why these elements have very similar chemical properties.