Edexcel OLevel Chemistry revision notes

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Lesson

Lesson-4.1.2- understand how elements are arranged in the Periodic Table: ??? in groups and periods.

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Lesson-4.1.1- understand how elements are arranged in the Periodic Table: ??? in order of atomic number.Previous Lesson-4.1.3- understand how to deduce the electronic configurations of the first 20 elements from their positions in the Periodic Table.Next