Magnesium reacts with oxygen. Which prediction about the electron changes is correct?
Each magnesium atom loses one electron and each oxygen atom gains one electron.
Each magnesium atom loses two electrons and each oxygen atom gains two electrons.
Each magnesium atom gains two electrons and each oxygen atom loses two electrons.
Each magnesium atom gains one electron and each oxygen atom gains one electron.
82 exam-style questions on AQA GCSE Chemistry 1.2 The periodic table, covering 1.2.1 The periodic table, 1.2.2 Development of the periodic table, 1.2.3 Metals and non-metals, 1.2.4 Group 0, 1.2.5 Group 1, and 1.2.6 Group 7. Each one has a worked solution and a mark scheme showing where the marks go.