The table gives information about four elements, W, X, Y and Z.
| Element | Melting point (∘C^\circ\mathrm{C}∘C) | Conducts electricity as a solid? | Ions formed in its compounds |
|---|---|---|---|
| W | 3550 | yes | none (forms only covalent compounds) |
| X | 98 | yes | X+\mathrm{X^{+}}X+ |
| Y | -101 | no | Y−\mathrm{Y^{-}}Y− |
| Z | 1085 | yes | Z2+\mathrm{Z^{2+}}Z2+ |
Which of these elements are non-metals?
Y only
X and Y only
W and Y only
W, X and Y only
80 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.