1
Compare metal properties
Use lustre, hardness, malleability, ductility, sonority and conductivity to classify substances.
Chapter route
Metals and Non-metals
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Ordered curriculum items
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2
Spot property exceptions
Recognise exceptions such as mercury, iodine, graphite and diamond.
3
Choose the right material
Apply properties to explain choices for wires, utensils, jewellery and machine parts.
4
Metals with oxygen
Describe formation of metal oxides and their general basic nature.
5
Non-metals with oxygen
Describe formation of non-metal oxides and their general acidic nature.
6
Metals with water
Compare metal reactions with cold water, hot water or steam.
7
Metals with acids
Identify hydrogen gas evolution and exceptions for less reactive metals.
8
Use reactivity to predict displacement
Predict whether one metal can displace another from its salt solution.
9
Build a reactivity order
Use observations from salt solution reactions to order metals by reactivity.
10
Predict using the series
Decide whether reactions with water, acids or salt solutions will occur.
11
Metal occurrence in nature
Connect reactivity with occurrence of metals in free or combined form.
12
Atoms to ions
Describe loss and gain of electrons in formation of cations and anions.
13
Show ionic bonding
Use simple electron-dot or shell diagrams to represent ionic compound formation.
14
Properties of ionic compounds
Relate high melting points, solubility and conductivity to ionic structure.
15
Choose extraction method
Relate high, medium and low reactivity metals to suitable extraction processes.
16
Understand ore concentration
Describe why ores are concentrated before extraction.
17
Reduce metal oxides
Describe extraction of metals from oxides using reducing agents or electrolysis.
18
Purify metals
Describe basic purpose and idea of electrolytic refining.
19
Why metals corrode
Identify moisture, oxygen and other factors that promote corrosion.
20
Prevent corrosion
Choose painting, oiling, galvanisation, alloying or electroplating for a context.
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