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
1.15 deduce the number of outer electrons in a main group element from it’s position in the Periodic Table
1.15 •groups show the number of electrons are on the outer
•periods show the number of orbitals the atom has
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