If you place two different metals in a solution of NaCl and connect them together using wires, you can measure a potential difference – this is because one metal (the more reactive one) will lose electrons and these will travel through the circuit to the less reactive metal. Some metals have a greater tendency to lose electrons than others. Metals react by losing electrons so a reactive metal is really good at losing electrons to form ions.
#REACTIVITY OF METALS SERIES#
We sometimes give students a reactivity series to learn, without explaining what it really means.
Exploring the reactivity of metals thinking about loss of electrons zinc, copper, iron and magnesium) by comparing temperature changes. This investigation could be easily adapted to investigate the reactivity of different metals (e.g. Students plot a simple graph of their repeated measurements to help them visualise exactly what is meant by reliable data. This activity asks students to measure the temperature change when pieces of magnesium are added to acid. Reflections of a science teacher – ten years onĬlick here to download the video Exploring the reactivity of different metals through measurement.Building a curriculum towards big ideas.Floating and sinking teaching resources.Bonding, structure and properties teaching resources.Balancing and writing chemical equations.The science teacher science thinking resources and pedagogy
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