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Reactivity series is an empirical progression of a series of metals, arranged
by their reactivity from highest to lowest (alkaline metals have highest
reactivity and Noble metals lowest reactivity). This series are used to
summarize information about the reactions of metals with acids or water, double
displacement reactions (more reactive metals displace metals with lower
reactivity) and the extraction of metals from their ores.</span>
In this example,
magnesium and lead are more reactive than copper, mercury is less
reactive.
