Sodium oxide has the formula Na2O\text{Na}_2\text{O}Na2O.
Sodium oxide contains Na+\text{Na}^+Na+ and O2−\text{O}^{2-}O2− ions.
The atomic number of sodium is 11.
What is the electronic configuration of the Na+\text{Na}^+Na+ ion?
2.8
2.8.1
2.8.2
2.8.8
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.