Sodium sulfide is an ionic compound.
Write the electronic configurations for the ions in sodium sulfide, Na2S\text{Na}_2\text{S}Na2S.
sodium ion: ..... sulfide ion: .....
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.