8 questions (with answers) based upon exam questions that you can give to students after you have finished teaching the basics of isotopes. This sheet is ideal as a homework or alternatively could be used as a task during your lesson.
A 73 slide PowerPoint covering OCR Chemistry A Specification points 2.1.1(a - e). I have added exam style questions, with answers, so that students can practice articulating their new knowledge and develop their skills.
6 questions (with answers) dealing with isotope exam style calculations. This resource is a perfect homework but could also be used as a mini low stakes test, lesson starter or just a plain old lesson activity. Enjoy.