CAIE A Level Chemistry 9701 · Atomic structure
Neon is a gas at room temperature and pressure. Naturally occurring neon contains three isotopes: , and .
Compare the chemical and physical properties of these three isotopes of neon, and explain any differences in terms of the particles present in the atoms.
5 marks, so the mark scheme is looking for about 5 separate creditworthy points. Making the same point twice in different words earns it once.
Compare means: Give similarities or differences between two things, and say which side each point belongs to. Write each point as a pair, for example: A is X, whereas B is Y. Two separate descriptions rarely earn the marks.
Written by Markquill to follow the Cambridge International syllabus. Markquill is independent and is not affiliated with or endorsed by Cambridge International.