8 The periodic table

Practice questions on The periodic table

• Explain why potassium reacts more vigorously with water than lithium does. (4 marks, Explain)
• Describe the properties of noble gases that make them chemically unreactive, and explain w… (4 marks, Describe and Explain)
• Explain why transition elements are widely used as catalysts in industrial chemical proces… (4 marks, Explain)
• Lithium, sodium and potassium are all stored under oil in the laboratory. Explain why thes… (4 marks, Explain)
• Iron is a transition element. State two ways in which iron differs from sodium, a Group I … (4 marks, State)
• Sodium and caesium are both Group I metals. Compare the physical and chemical properties o… (4 marks, Compare)
• State the colours and physical states of chlorine, bromine, and iodine at room temperature… (4 marks, State)
• Chlorine water is added to a solution of potassium bromide and then to a separate solution… (4 marks, Describe and Explain)
• Explain why the boiling points of the halogens increase going down Group VII from fluorine… (4 marks, Explain)
• Explain why chlorine is able to displace bromide ions from a solution of potassium bromide… (4 marks, Explain)
• Describe four properties of transition elements that distinguish them from Group I metals. (4 marks, Describe)
• Copper and potassium are both metals. Explain why copper is classed as a transition elemen… (4 marks, Explain)
• State two physical properties of noble gases and explain why noble gases are used in filam… (4 marks, State / Explain)
• Describe how the reactivity of the halogens changes going down Group VII, and explain this… (4 marks, Describe and Explain)
• Rubidium is a Group I metal. Describe what is observed when a small piece of rubidium is p… (4 marks, Describe)
• Describe how the reactivity and melting point of the Group I metals change as you go down … (4 marks, Describe and Explain)