4. Write notes.
(a) Use of metals
Answers
Answer:
Uses for Metals and Nonmetals
For example: Shiny metals such as copper, silver, and gold are often used for decorative arts, jewelry, and coins. Strong metals such as iron and metal alloys such as stainless steel are used to build structures, ships, and vehicles including cars, trains, and trucks.
Explanation:
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Some chemical elements are called metals. They are the majority of elements in the periodic table. These elements usually have the following properties:
They can conduct electricity and heat.
They can be formed easily.
They have a shiny appearance.
They have a high melting point.
Most metals are solid at room temperature, but this does not have to be the case. Mercury is liquid. Alloys are mixtures, where at least one part of the mixture is a metal. Examples of metals arealuminium, copper, iron, tin, gold, lead, silver, titanium, uranium, and zinc. Well-known alloys include bronze and steel.
The study of metals is called metallurgy.
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