Edexcel IGCSE Chemistry Double Award Revision
A guide to the Edexcel IGCSE Chemistry Double Award Syllabus for 2020
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Saturday, 2 July 2016
1.12 calculate the relative atomic mass of an element from the relative abundances of it’s isotopes
1.12 •(% of isotope x its mass) + (% of isotope x its mass) / 100
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