To succeed in this topic, you need to: • Be familiar with oxygen and sulphur as members of Group 16 (previously Group 6) of the Periodic Table. • Be familiar with physical and chemical trends in the Periodic Table, and that p-block elements may have metallic or non-metallic properties. • Be familiar with elements in the same Group having similar chemical properties, due to their electron configurations and number of valence electrons available. After working through this Chemistry Factsheet, you will: • Be aware of the increasing trend in metallic characteristics, and decreases in electronegativity, in Group 16 elements, descending the group. • Be aware of similarities in the variable oxidation states, leading to similar chemical reactions, for Group 16 elements. • Be able to describe Group 16 oxides and their acidic properties • Be able to describe the trend in Group 16 hydride’s boiling-points, explaining the anomalous behaviour of water (oxygen hydride).
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