Magnesium oxide has the chemical formula MgO\text{MgO}MgO.
Magnesium oxide contains Mg2+\text{Mg}^{2+}Mg2+ ions and O2−\text{O}^{2-}O2− ions.
The atomic number of magnesium is 12.
What is the electronic configuration of the Mg2+\text{Mg}^{2+}Mg2+ ion?
2.8.22.8.22.8.2
2.82.82.8
2.8.12.8.12.8.1
2.62.62.6
Practise Edexcel GCSE Chemistry Ionic bonding with exam-style questions for Foundation and Higher tier. 32 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.
