Calcium phosphide is an ionic compound with the formula Ca3P2\text{Ca}_3\text{P}_2Ca3P2, consisting of calcium ions (Ca2+\text{Ca}^{2+}Ca2+) and phosphide ions (P3−\text{P}^{3-}P3−).
The atomic number of phosphorus is 15.
What is the electronic configuration of the phosphide ion (P3−\text{P}^{3-}P3−) in calcium phosphide?
2.8.2
2.8.5
2.8.8
2.8.8.2
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.