Uploaded November 2023 | Updated September 2026, 1 day ago
Find your 9s with PLUS. Click the link to try for free freesciencelessons.co.uk/modules/gcse-chemistry-1-triple
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In this video, we look at relative atomic mass. First we explore what is meant by relative atomic mass in terms of isotopes and the number of neutrons. I explain what is meant by the "abundance" of an isotope. We then look at how to calculate the relative atomic mass for different elements, including boron which has two common isotopes and magnesium which has three common isotopes.
This video is based on the AQA spec. This video may be appropriate for iGCSE / O Level Chemistry. Please consult your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks.
Find your 9s with PLUS. Click the link to try for free freesciencelessons.co.uk/modules/gcse-chemistry-1-triple
Teachers, to get PLUS for your school, email schools@freesciencelessons.co.uk
In this video, we look at relative atomic mass. First we explore what is meant by relative atomic mass in terms of isotopes and the number of neutrons. I explain what is meant by the "abundance" of an isotope. We then look at how to calculate the relative atomic mass for different elements, including boron which has two common isotopes and magnesium which has three common isotopes.
This video is based on the AQA spec. This video may be appropriate for iGCSE / O Level Chemistry. Please consult your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks.
