Unit 11: Materials Science
LO1: Understand material structure and classification
Periodicity
Learner activity sheet
Activity 1
Elements, the majority of which are metals, are categorised using the periodic table.
The periodic table shows elements arranged by their atomic number (i.e. electron, proton and neuron
arrangements).
Iron, Zinc, Titanium, Aluminium, Magnesium,
Chromium, Nickel, Lead
For the common metals listed above find and tabulate:
1.
Chemical symbol and atomic number.
2.
The number of protons and neutrons.
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3.
The number and arrangement of electrons.
4.
The atomic mass.
5.
The melting point.
You may wish to sketch the proton, neutron and electron arrangement for each metal.
Arrange the elements by:
6.
Atomic mass – and comment on the order.
7.
Melting point – and comment on the order.
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Activity 2:
The pot shown here is made out of Bronze. It is like one that would have been made in the Bronze Age.
Look at the list of common metals below:
Bronze, Amalgam, Tin, Brass, Solder, Cast Iron, Steel
1.
Can you find these in the periodic table, and if not why?
2.
What is special about these metals – and what is their typical composition?
3.
For what purpose are metals of this type made?
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