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This statue is made of bronze. Bronze is an alloy. It is composed of copper and tin.
Metals and Non-metals 01
Revise what you know about elements. Which metal is liquid at room temperature?
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1 .
A metal, such as platinum, may be used in jewellery as .......
it is shiny and reactive
it is shiny and unreactive
it is soft and a good conductor of heat
it is soft and cheap
People like jewellery to be shiny and to stay shiny. Unreactive metals like gold and platinum take a long time to tarnish (lose their shine)
2 .
Where are the non-metallic elements found in the periodic table?
In the middle
In the top rows
On the left-hand side
On the right-hand side
Some of the elements either side of the dividing line show properties of both metals and non-metals, for example silicon conducts electricity but cannot be bent or hammered into shape - it shatters
3 .
The correct way to write the symbol for the metal chromium is .......
Ch
CH
Cr
CR
If the symbol contains two letters, the first is a capital so that immediately rules out the second and the fourth options
4 .
The filament of a light bulb consists of the metal .......
aluminium
iron
silver
tungsten
Tungsten has the highest melting point of all pure metals at 3,422°C
5 .
The most abundant metal in the Earth's crust is .......
aluminium
copper
gold
iron
There is 8.2% aluminium in Earth's crust found as bauxite, aluminium oxide, never as the element
6 .
A metal which is used in jewellery is .......
lead
silver
tin
tungsten
It is less expensive than gold and platinum and will stay shiny for a long time
7 .
Bronze is an alloy. It is composed of .......
copper and tin
copper and zinc
iron and zinc
lead and tin
An alloy is a mixture of metals
8 .
The list which best describes the properties of metals is .......
strong, good conductor of heat and electricity, solid
strong, poor conductor of heat and electricity, shiny
weak, ductile, good conductor of heat and electricity
weak, low melting point, poor conductor of heat
Some metals conduct heat and electricity better than others
9 .
The list which contains only metals is .......
aluminium, copper, nitrogen
iron, oxygen, hydrogen
iron, silver, aluminium
iron, sulfur, copper
Nitrogen, oxygen, hydrogen and sulfur are all non-metals
10 .
The approximate number of elements we know about today is .......
18
48
118
1018
It is quite possible scientists will discover even more elements
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