A student is given four elements, A, B, C and D. The table shows some of their properties.
| Element | Appearance at room temperature | Melting point in °C | Conducts electricity when solid? |
|---|---|---|---|
| A | shiny grey solid | 1538 | yes |
| B | dull yellow solid | 115 | no |
| C | colourless gas | −218 | no |
| D | shiny silvery solid | 98 | yes |
Give the letters of the two metals.
Give one piece of evidence from the table that B is a non-metal.
Most metals have a high melting point. Give the letter of the metal that does not follow this pattern.
State where elements B and C are found in the periodic table compared with elements A and D.
Explain, in terms of electrons, why metals are found on the left-hand side of the periodic table.
Explain why metals conduct electricity.
50 exam-style questions on Edexcel GCSE Chemistry 2.2 The periodic table, covering 2.2.1 Mendeleev's periodic table, 2.2.2 Periods, groups, metals and non-metals, and 2.2.3 Electronic configuration and position in the periodic table. Each one has a worked solution and a mark scheme showing where the marks go.