But how many of these elements do you know? Test your knowledge and compete with other Live Science readers to see who can come top in our periodic table quiz. The periodic table of elements is a ...

Six-mark questions are extended open response questions ... Two elements in group 1 of the periodic table are lithium and sodium. Very small pieces of lithium and sodium were reacted separately ...

Six-mark questions are extended open response questions. These require longer answers than the structured questions that have fewer marks. It is wise to plan your answer first by making some notes.