Transition Metals vs Group 1 Metals (Oxford AQA IGCSE Chemistry)
Revision Note
Written by: Alexandra Brennan
Reviewed by: Stewart Hird
Difference in Properties of Transition Metals & Group 1 Metals
Transition metals and Group 1 metals (the alkali metals) differ in some of their properties
Compared with Group 1 elements, transition metals:
Have higher melting points (except mercury)
Titanium melts at 1,688 ºC whereas potassium melts at only 63.5 ºC, not far off the average cup of tea!
Have higher densities
Some Group 1 elements will float on water but no transition metal will
Are stronger and harder
Some Group 1 metals can be cut with a knife, unlike transition metals
Are much less reactive
Group 1 metals will react vigorously with water or oxygen compared to transition metals
For example, a Group 1 metal will tarnish in the presence of oxygen as a metal oxide is formed
Iron on the other hand can take several weeks to react with oxygen to form iron oxide (rust) and requires the presence of water
Examiner Tips and Tricks
If you are asked compare the properties of transition metals with Group 1, it is important to use comparative statements.
For example, stating that transition metals are 'strong' will not score the mark, but stating they are 'stronger' will.
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