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We will spend next lesson revising first and test is quick check of your understanding at the end. No worrying please!

Optional - Practice your formulae on sheet 4d. (IÕll mark these on Monday)

Hope that helps and happy studying 😊

Revision list

Know the structure of an atom in terms of the positions, relative masses and relative charges of sub-atomic particles

Know what is meant by the terms atomic number and mass number

Understand how to deduce the electronic configurations of the first 20 elements from their positions in the Periodic Table

Understand how ions are formed by loss or gain of electrons

Learn the charges of these ions:

¥ metals in Groups 1, 2 and 3

¥ non-metals in Groups 5, 6 and 7

¥ hydrogen (H+)

Write formulae for compounds formed between the ions listed above