Some properties of Group VI elements are shown. [Figure 6.1: Table showing density at room temperature (in g/cm³), melting point (°C), boiling point (°C), and electrical conductivity of solid for oxygen, sulfur, selenium, tellurium, and polonium. Density for selenium is blank.]

1. (a)(i)Use the information in the table to suggest the density of selenium at room temperature.[1]
2. (a)(ii)Use the information in the table to deduce the physical state of oxygen at -190°C. Explain your answer. physical state .......... explanation ..........[2]
3. (b)(i)Describe the trend in the electrical conductivity of the Group VI elements.[1]
4. (b)(ii)There is a trend in the melting points of the Group VI elements. Which element does not follow this trend? Use the data in the table to explain your answer. element .......... explanation ..........[1]
5. (c)Use the information in the table to explain how the structure and bonding in oxygen differs from the structure and bonding in polonium.[2]
6. (d)Sulfur dioxide is an atmospheric pollutant.
7. (d)(i)State one source of the sulfur dioxide in the atmosphere.[1]
8. (d)(ii)Describe and explain how sulfur dioxide contributes to acid rain.[2]

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.