Edexcel OLevel Chemistry revision notes

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Lesson

Lesson-12.1.3- know the charges of these ions: ??? non-metals in Groups 5, 6 and 7 ??? Ag+, Cu2+, Fe2+, Fe3+, Pb2+, Zn2+

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Lesson-12.1.2- know the charges of these ions: ??? metals in Groups 1, 2 and 3.Previous Lesson-12.1.4- know the charges of these ions: hydrogen (H+), hydroxide (OH???), ammonium (NH4+), carbonate (CO32???), nitrate (NO3-), sulfate (SO42???).Next