Covers Group I elements, electron configuration, and reactivity.
Reviews the electron configuration and reactivity of Group 1 elements.
Compare what happens when various alkali metals react with water.
David Johnson of The Open University demonstrates how the alkalei metals react with water - with explosive results - in this extract from the BBC/OU programme "Elements Organised: A Periodic Table".
A summary of alkali metals and examples of chemical reactions with alkali metals. Videos of the chemical reactions are provided in the article.