One of the compounds used in a laboratory experiment is magnesium chloride, MgCl2\text{MgCl}_2MgCl2.
Magnesium chloride contains the chloride ion, Cl−\text{Cl}^-Cl−.
Give the formula of the magnesium ion in magnesium chloride.
Practise Edexcel GCSE Chemistry Ionic bonding with exam-style questions for Foundation and Higher tier. 42 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.