Metal is an alloy that is widespread in the universe. Metals are used in alloys to make other materials such as steel, aluminium, and copper. They can be visible as coloured powders, or they can be combined with other elements to make alloys with different properties
Metals are made up of a number of different elements, including iron, chromium, nickel, cadmium and cobalt. These elements are combined together in different proportions to create a range of different metals. Some metals are harder than others; for example steel is a harder metal than aluminium. Other metals have a different colour; gold has a yellowish colour while silver has a silvery appearance.
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