Question

physical and chemical properties of metals and non - metals .​

Answer 1

Explanation:

The following are the physical properties of metal :

The physical properties make them useful for many purposes. For e.g. Copper is used in making electric wires, gold is used to make jewellery, stainless steel is used to make pots, pans, etc

Metals react with nonmetals to form ionic bonds. For e.g. Sodium Chloride (NaCl)

Metals are a good conductor of electricity which means that they can conduct electricity due to the free moving electrons present in them. Copper is used as wiring as it is a good conductor of electricity.

Metals have high melting points and high boiling points as they have strong metallic bonds.

All metals are physically lustrous. They have a lustre that makes them shine. Gold is used for making jewellery.

Metals are hard, they can’t be broken easily and require a lot of energy and strength to break.  Iron is used to make cars, buildings, ships,

The following are the properties of Nonmetals :

Nonmetals have high ionization energies.

They have high electronegativities.

Nonmetals are insulators which means that they’re poor conductors of electricity.

They are dull, they do not have lustre like metals.

Nonmetals are poor conductors of heat. They’re poor thermal conductors.

They are very weak and brittle. They tend to easily break or shatter.

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Chemistry > Metals and Nonmetals > Chemical Properties of Metals and Nonmetals

Metals and Nonmetals

Chemical Properties of Metals and Nonmetals

Metals and Nonmetals are an important part of our lives. We can’t survive without nonmetals like oxygen, and our survival would be tough without the existence of metals. What’s the chemical science behind these substances? Let’s find out more about the chemical properties of metals and

Chemical Properties of Metals

The chemical properties of Metals and Nonmetals are described below. Let us start with the chemical properties of metals.

The density of metals is usually high.

Metals are malleable and ductile.

Metals form an alloy with other metals or non – metals.

Some metals react with air and corrode. For e.g. Iron.

Metals are good conductors of heat and electricity. Lead is an exception.

Generally, metals are in a solid state at room temperature. Except for Mercury. Mercury is in a liquid state.

the chemical properties of nonmetals

Nonmetals are poor conductors of heat and electricity. Graphite and Gas carbon are exceptions.

Unlike metals, nonmetals aren’t malleable and ductile.

Nonmetals react more with metals than with nonmetals.

Usually, nonmetals react with other nonmetals in high temperature.

Most nonmetals do not react with air in room temperature.

White phosphorus is the only nonmetal that reacts with air to form its oxide by burning.

Usually, nonmetals do not react with water. Except for Chlorine, chlorine dissolves in water to form an acidic solution.

Nonmetals have a low density.

Answer 2

Answer:

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Physical Properties of Metals

• Shiny (lustrous) in nature
• Metal is a good conductor of electricity and heat
• Density and melting point is high
• Mouldable (Malleable)
• Ductile
• At room temperature, it is in solid form except for mercury
• Opaque

Chemical Properties of Metals

• Easily corrodible
• Can lose electrons
• Form basic oxides
• Have low electronegativities
• Good reducing agents

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Physical Properties of Non-metals

• Poor conductors of electricity and heat
• Non-Ductile metals
• Brittle solids
• Maybe solids, liquids or gases at room temperature
• These are not sonorous
• Transparent

Chemical Properties of Non-metals

• The number of electrons in the outer shell is generally 4-8
• Easily gain or lose valence electrons
• Form acidic oxides whenever they come in contact with oxygen
• High electronegative elements
• Great oxidizing agents

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