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.

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 ...

Can France claim the first periodic table? Probably not, but a French Geology Professor made a significant advance towards it, even though at the time few people were aware of it. Alexandre Béguyer de ...

Discover the history, structure, and importance of the periodic table of elements ... isotope with a longer half-life (how long it takes 50% of that element to decompose) could be produced ...

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...