Element X is in Period 3.
The oxide of X reacts with dilute hydrochloric acid, but it does not react with sodium hydroxide solution.
Atoms of X have more outer shell electrons than atoms of sodium.
Which element is X?
Sulfur
Magnesium
Sodium
Phosphorus
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.