O Level · Chemistry · Medium level · 7 questions
The Periodic Table: Medium 2
Groups, periods and the trends down Group I and Group VII, explained from electron shells, the section where "describe" and "explain" are two different marks. This quiz is a step up: the questions ask you to use the ideas as well as recognise them. 7 questions (multiple choice), marked the moment you finish, with the reason for every answer.
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Your score is saved against The Periodic Table, so you can see which topics are solid and which need another go.