STUDENT CHECKLIST
C09 – The Periodic Table
At the end of this topic, you should:
CORE

SUPPLEMENT
Describe the way the Periodic Table classifies elements in
order of proton number

Use the Periodic Table to
predict properties of elements
by means of groups and
periods

Describe the relationship
between Group number,
number of outer-shell
(valency) electrons and
metallic/non-metallic
character
9.1 Periodic trends

Describe the change from metallic to non-metallic
character across a period
9.2 Group properties

Describe lithium, sodium and potassium in Group I as a
collection of relatively soft metals showing a trend in
melting point and reaction with water

Predict the properties of other
elements in Group I, given
data where appropriate

Describe the trends in properties of chlorine, bromine and
iodine in Group VII including colour, physical state and
reactions with other halide ions

Predict the properties of other
elements in Group VII, given
data where appropriate
9.3 Transition elements

Describe the transition elements as a collection of metals
having high densities, high melting points and forming
coloured compounds, and which, as elements and
compounds, often act as catalysts
9.4 Noble gases

Describe the noble gases as being unreactive

Describe the uses of the noble gases in providing an inert
atmosphere, i.e. argon in lamps, helium for filling balloons
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