A student investigates elements P and Q. Both elements form oxides that dissolve in water.
| Element | Electron arrangement | Result when the oxide dissolves in water |
|---|---|---|
| P | 2.8.2 | An alkaline solution forms |
| Q | 2.8.6 | An acidic solution forms |
The student concludes that P is likely to be a metal and Q is likely to be a non-metal.
Explain how the data support the student's conclusion.
122 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.