a generally hard and shiny chemical element, such as iron or gold, or a mixture of such elements, such as steel, which usually allows electricity and heat to travel through it
metals
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15
a chemical element that is a valuable shiny, white metal, used for making cutlery (= knives, spoons, etc.), jewellery, coins, and decorative objects
silver
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a soft, silver-white metal that burns quickly in the air and is used in special hard glasses and fertilizers (= substances that help crops grow better)
potassium
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a simple substance that cannot be reduced to smaller chemical parts
element
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a quality in a substance or material, especially one that means that it can be used in a particular way
property
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a chemical element that is a reddish-brown metal, used especially for making wire and coins
copper
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a chemical element that is a valuable, shiny, yellow metal used to make coins and jewellery
gold
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a chemical element that is present in teeth, bones, and chalk
calcium
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15
a chemical element that is a gas with no smell or colour, does not react with other chemicals, and shines red when an electric current goes through it
neon
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15
a chemical element that is the lightest gas, has no colour, taste, or smell, and combines with oxygen to form water
hydrogen
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a chemical element that is a gas with no smell or colour. Its forms a large part of the air on earth, and is needed by animals and plants to live
oxygen
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a chemical element that is a heavy, silver-coloured metal, liquid at normal temperatures
mercury
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a chemical element that is a gas lighter than air, that will not burn and is used in balloons, airships, and some types of lights