Question

Defination of metal? types of metal

Answer 1

A solid material which is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity. (Example... Gold, Silver, etc...)

Types of metal: Aluminium, Brass, Copper, Stainless steel and Wrought Iron

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Answer 2

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☞ What are Metals ?

• 78% of known elements are metals.
• They take up the left side of the Periodic Table.
• At room temperature, they are usually solids (except mercury).
• They usually have high boiling and melting points.
• They are shiny having metallic lustre.

☞ Types of Metals

There are three main types of metals :-

1. Ferrous metals
2. Non ferrous metals
3. Alloys Metals

✒ Ferrous Metals

• Some common ferrous metals include alloy steel, carbon steel, cast iron and wrought iron.
• These metals are prized for their tensile strength and durability.
• Carbon Steel also known as structure steel is a staple in the construction industry and is used in the tallest skyscrapers and longest bridges.
• Ferrous metals are also used in shipping containers, industrial piping, automobiles, railroad tracks, and many commercial and domestic tools.

✒ Non ferrous metals

• Non-ferrous metals include aluminum, copper, lead, zinc and tin, as well as precious metals like gold and silver.
• Their main advantage over ferrous materials is their malleability.
• They also have no iron content, giving them a higher resistance to rust and corrosion, and making them ideal for gutters, liquid pipes, roofing and outdoor signs.
• Lastly they are non-magnetic, which is important for many electronic and wiring applications.

✒ Alloys Metals

• The meaning of the term ‘alloy’ is a substance formed from the combination of two or more metals.
• Alloys can also be formed from combinations of metals and other elements.
• The properties exhibited by alloys are often quite different from the properties of its individual components.
• It is not uncommon for alloys to have greater strength and hardness when compared to pure metals.

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-: Additional Information :-

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☞ What are Non-metals ?

• They occupy the right-hand side of the Periodic Table.
• Most non-metals are brittle and are not malleable or ductile.
• At room temperature, they are usually solids or gases.
• They usually have low boiling and melting points (except carbon and boron).
• They are poor conductors of heat and electricity.

☞ What are Metalloids ?

• Metalloids exhibit some properties of metals as well as of non-metals. 
• They may have a metallic or dull appearance.
• They are usually brittle and are fair conductors of electricity.
• They may gain or lose electrons during chemical reactions.
• They form alloys with metals.

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