Question

Explain physical properties of metals and non-metals
And
Explain Chemical properties of metals and nonmetals

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Answer 1

Answer:

• Elements can be divided into metals and nonmetals and it is important to know whether a particular element is a metal or nonmetal. Metals (like copper and aluminium) are good conductors of heat and electricity, while nonmetals (such as phosphorus and sulfur) are insulators.

Explanation:

The physical properties of metals are:

• Luster

The property of metals which in the pure state usually shines. The shine on the metallic surface is the metallic luster. They shine in light due to the reason that the metals possess free electrons that vibrates on getting in contact with light.

Malleability

Answer 2

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Metals :-

1. Metals are malleable means they can be converted in thin sheets using any heavy object like hammer.

2. Metals are good conductor of heat and electricity means Metals allows heat and electricity to pass through them easily.

3. Metals are lustrous means they have shining surface (or we can say they are shiny).

4. Metals are hard.

5. Metals are sonorous means metals produce sound after striking it with any object.

Examples :- Gold, silver, lead, aluminum, iron and copper etc.

Non-Metals :-

1. Non - metals are non malleable means they can't be converted in thin sheets using any heavy object like hammer.

2. Non - metals are poor conductor of heat and electricity means they don't allows heat and electricity to pass through them easily.

3. Non - metals are non - lustrous means they don't have shining surface (or we can say they are non shiny).

4. Non-metals are soft.

5. Non - metals are non sonorous means non-metals do not produce sound after striking it with any object.

Examples :- Carbon, sulphur, phosphorus, oxygen and nitrogen etc.

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Metals :-

1. Metals form basic oxides. In which metals react with oxygen to form metal oxides.

2. Metals displace hydrogen from water, metals react with water to form a metal oxide and Hydrogen gas.

3. Metals displace hydrogen from dilute acids. They react with dilute hydrochloric acid to form metal chlorides and Hydrogen gas.

4. Metals from ionic chlorides with chlorine. They react with chlorine to form ionic chlorides.

5. Metals usually do not combine with Hydrogen. But less reactive metals can be react.

Non-Metals :-

1. Non metals form acidic oxides or neutral oxides. They react with oxygen to form acidic oxides.

2. Non - metals do not react with water. Because non metals can't give electrons to reduce hydrogen ions.

3. Non - metals do not react with dilute acids. because they do not displace hydrogen from acids.

4. Non - metals form covalent chlorides with chlorine. Covalent chlorides are non electrolytes.

5. Non - metals react with Hydrogen to form stable, covalent hydrides.