In a dot-and-cross diagram of CO2\mathrm{CO_{2}}CO2, how many electrons are shown in the shared regions altogether?
[1]
A
2
B
4
C
16
D
8
Markscheme
2.4 Covalent bonding Questions
53 exam-style questions on Edexcel GCSE Chemistry 2.4 Covalent bonding, covering 2.4.1 Covalent bonding and simple molecules. Each one has a worked solution and a mark scheme showing where the marks go.