Magnesium has electronic configuration 2,8,2 2,8,2\,2,8,2 and oxygen has electronic configuration 2,62,62,6.
A student claims: Each atom transfers one electron to the other atom when magnesium oxide forms.
Draw a dot-and-cross diagram for magnesium oxide that shows the correct ions.
Explain why the student's claim is incorrect. Include the number and direction of electrons transferred.
State the electronic configuration of each ion formed.
56 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.