Cambridge IGCSE Chemistry
2.3Isotopes
Isotopes in Cambridge IGCSE Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic20 practice questions1 lesson
Learning objectives
What the syllabus expects you to be able to do.
- 2.3.1Define isotopes as atoms of the same element that have the same number of protons but different numbers of neutrons.
- 2.3.2Interpret and write nuclide symbols, showing mass number and proton number, for atoms and ions.
- 2.3.3Supplement: state that isotopes of an element have the same chemical properties because they have the same number of electrons and so the same electronic configuration.
- 2.3.4Supplement: calculate the relative atomic mass of an element from the relative masses and abundances of its isotopes.
Lessons
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Isotopes
25 min
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Sample question
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Exam style
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