The table shows some properties of four elements, W, X, Y and Z.
| Element | Melting point (∘C^\circ\mathrm{C}∘C) | Appearance | Conducts electricity as a solid? | pH of the solution made when its oxide is added to water |
|---|---|---|---|---|
| W | 3600 | dull, black | yes | 5 |
| X | 114 | shiny, grey-black | no | 2 |
| Y | 2076 | dull, brown-black | no | 5 |
| Z | 842 | shiny, silver-grey | yes | 12 |
Which element is a metal?
W
X
Y
Z
64 exam-style questions on OCR GCSE Chemistry 2.2 Bonding, covering 2.2.1 Metals, non-metals and the Periodic Table, 2.2.2 Types of chemical bonding and dot and cross diagrams, 2.2.3 Limitations of bonding models, and 2.2.4 Reactivity, atomic number and the modern Periodic Table. Each one has a worked solution and a mark scheme showing where the marks go.