Unit 2 — Atoms, Elements and Compounds
Isotopes — O Level Chemistry Chemistry
Atoms of the same element with different numbers of neutrons, and how to calculate relative atomic mass from isotopic abundance.
Resources for this topic are being prepared.
In the meantime, here are a few places that might help instead:
Topic Overview
Atoms of the same element with different numbers of neutrons, and how to calculate relative atomic mass from isotopic abundance. This sits within O Level Chemistry (Cambridge), alongside the other topics on that syllabus.
Topical Past Papers
Real exam questions on Isotopes, compiled by topic rather than by year, testing understanding rather than recall alone. Newer files include their own answers.
MCQs
Quick-check multiple-choice questions on Isotopes, for testing recall and spotting gaps fast.
O Level Chemistry Notes
Presentation notes for Isotopes, for online study — view only.