Nitrogen, N2\mathrm{N_{2}}N2, is a simple molecule.
A dot and cross diagram of N2\mathrm{N_{2}}N2 shows the outer shell electrons only.
How many electrons are shared between the two atoms, and how many outer electrons on each nitrogen atom are not used in bonding?
6 shared electrons, 2 non-bonding electrons on each atom
3 shared electrons, 2 non-bonding electrons on each atom
2 shared electrons, 4 non-bonding electrons on each atom
6 shared electrons, 5 non-bonding electrons on each atom
64 exam-style questions on OCR GCSE Chemistry 2.2 Bonding, covering 2.2.1 Metals, non-metals and the Periodic Table, 2.2.2 Types of chemical bonding and dot and cross diagrams, 2.2.3 Limitations of bonding models, and 2.2.4 Reactivity, atomic number and the modern Periodic Table. Each one has a worked solution and a mark scheme showing where the marks go.