Chemistry · May / June 2016 · Paper 12 · Question 24

The table gives the melting points, densities and electrical conductivities of four elements. Which element is copper?

1. Amelting point –38.9 °C, density 13.6 g/cm³, electrical conductivity good
2. Bmelting point –7.2 °C, density 3.12 g/cm³, electrical conductivity poor
3. Cmelting point 97.8 °C, density 0.97 g/cm³, electrical conductivity good
4. Dmelting point 1083 °C, density 8.96 g/cm³, electrical conductivity good

As printed in the paper