A chemist analyses two crystalline salts containing metal T.
| sample | negative ion present | number of T ions recorded | number of negative ions recorded |
|---|---|---|---|
| 1 | F−\mathrm{F^{-}}F− | 2.0 × 1020 | 6.0 × 1020 |
| 2 | SO42−\mathrm{SO_{4}^{2-}}SO42− | 4.0 × 1020 | 4.0 × 1020 |
Explain how the data for sample 1 can be used to determine the charge on a T ion.
Give the formula of the sulfate of T.
Explain whether the recorded numbers of ions for sample 2 are consistent with your formula in (b).
119 exam-style questions on Edexcel GCSE Chemistry 2.3 Ionic bonding, covering 2.3.1 Ions and the formation of ionic bonds, 2.3.2 Naming and deducing formulae of ionic compounds, and 2.3.3 Giant ionic lattices. Each one has a worked solution and a mark scheme showing where the marks go.