Metal - Overview, Types, Classification, Properties, FAQs

What is metals?

Metals Definition and Metals meaning: Metals are minerals or substances naturally forming beneath Earth's surface. Most metals are shiny. Metals are inorganic, which means that it is made of non-living substances. Metals definition: Metals is a material that is freshly made, polished or shredded material that looks shiny and has relatively good electrical and thermal conductivity.

Metals are naturally occurring compounds in the earth's crust. They usually exist in the form of metalslic minerals, which are connected to each other and to many other elements. They are also found naturally in rocks washed by surface water and groundwater and atmospheric dust. We know that copper is metal and iron is metal.

Examples of metals: Iron, copper, silver, nickel, tin, etc.,

Also read -

• NCERT Solutions for Class 11 Chemistry
• NCERT Solutions for Class 12 Chemistry
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Classification of metals:

The two types of metals are:

1. Ferrous metals: The metals which contain iron has a main constitute.

2. Nonferrous metals: The metals, where iron is not the main constitute.

Metal images:

Types of metals list: Examples of metals

Below we have mentioned all the metallic elements, that is periodic table metals elements.

Physical Properties of Metals:

• A very important physical feature of metals is that heat and electricity can be conducted. Every metal is a good heat and electricity conductor. Each metal is a good electricity conductor. Silver is the best driver of all metals for electricity. Lead is the worst heat conductor, among all the metals, while iron and mercury are poor electrical conductors.

• The ability to extend the material into a wire is ductility. The ability to draw metals into wires and combine their durability to find applications as wires and for soldering purposes.

• Metals is malleable. They can be beaten into thin slices of their own shape. Objects such as aluminium, gold, and silver are usually processed into micro-sheets for industrial purposes.

• Metals is shiny, so it reflects the light falling on the surface of the metal. This is one of the reasons why metals are used to make women's ornaments and jewellery.

Also read :

• NCERT notes Class 11 Chemistry Chapter 3 Classification of Elements and Periodicity in Properties
• NCERT solutions for Class 11 Chemistry Chapter 3 Classification of Elements and Periodicity in Properties
• NCERT Exemplar Class 11 Chemistry Solutions Chapter 3 Classification of Elements and Periodicity in Properties

Chemical Properties of Metals:

1. Reaction with water: Only highly responsive metals, and not all metals, react with water. Sodium, for example, reacts with water and oxygen vigorously and provides a lot of heat during the process. That is why sodium is not in contact with humidity or oxygen so that it is stored in kerosene.

2. Reaction with acids: When metals react with acids, hydrogen gas is generated. For instance, zinc produces zinc chloride and hydrogen gas when reacting with hydrochloric acid.

3. Reaction with oxygen: When metals are burned in the presence of oxygen, metals oxides are produced. These metals oxides are of fundamental importance in nature. For example, when a magnesium strip is burned with oxidation, it forms magnesium oxide and forms magnesium hydroxide when it is dissolved in water.

4. Reaction with base: Not all metals react with bases and form metals salts and hydrogen during the reaction. When zinc reacts with strong sodium hydroxide, sodium zincate and hydrogen are generated.

NCERT Chemistry Notes:

• NCERT Notes Class 11th Chemistry
• NCERT Notes Class 12th Chemistry
• NCERT Notes For All Subjects

Uses of Metals:

• Copper and aluminium are used to make cables because they have very low electrical resistance and good electrical conductivity.

• Iron, copper, and aluminium are used in the manufacture of household goods and factory equipment.

• Iron is used as a catalyst in the production of gaseous ammonia by the Haber process.

• zinc is used for galvanized iron to prevent rust.

• Chromium and nickel are used in electroplating and stainless steel production.

• Aluminium foil is used for packaging medicines, cigarettes, and food.

• Jewellery and coins are made of silver and gold. Thin silver and gold pieces are used to decorate candies.

• Mercury is used to making thermometers.

Also check-

• NCERT Exemplar Class 11th Chemistry Solutions
• NCERT Exemplar Class 12th Chemistry Solutions
• NCERT Exemplar Solutions for All Subjects