Which statement explains why the boiling point of the noble gases increases down Group 18?
The atomic radius decreases, allowing closer packing of the atoms.
The outer-shell electrons are further from the nucleus, decreasing reactivity.
The number of electrons increases, resulting in stronger induced dipole-dipole interactions (London forces).
The strength of the covalent bonds within the monatomic atoms increases.
31 exam-style questions on OCR A A Level Chemistry Bonding and structure. Each one has a worked solution and a mark scheme showing where the marks go.