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Investigating how the voltage produced by a simple cell is related to the reactivity series.
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Investigating how the voltage produced by a simple cell is related to the reactivity series Scientific knowledge Simple cell: 2 different metals that are connected will generate an electric current when placed in an electrolyte. An electrolyte is a conducting solution containing ions. Simple cell Reactivity A metal's reactivity depends on its ability to lose or gain electrons. How a simple cell works: So H ions for example could touch the -ve rod and become discharged producing hydrogen gas. N.B. If there is a flow of electrons between the 2 metals there will be a potential difference created (voltage). Example (metals mg and cu) For mg the metal loses electrons, which flow through the external wire to the cu. Mg dissolves forming mg ions. Cu gains electrons from the mg becoming negatively charged. These electrons begin to repel each other causing the flow to cease. It is possible that the electrons can attract H ions in the electrolyte. Possible key variables...
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