Question

I. Answer the following questions:

1. List out physical properties of metals and nonmetals.

2. What is sonority?

3. Write the uses of metals and nonmetals.

4. What are metalloids?

5. Name any two soft metals.​

Answer 1

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Answer 2

Answer:

1. Physical properties of metals :

1. Malleability

2. Density

3. Ductility

4. Metallic lustre

5. Tensility

6. Solubility

7. Sonority

8. Good conductors of heat and electricity

9. High melting and boiling points

Physical properties of non-metals :

1. Brittleness

2. Non-ductility

3. Non-sonorous

4. Non-lustrous

5. Bad conductors of heat and electricity

6. Low melting and boiling points

2. The property of metals by which they produce sound when hit with an object is called sonority.

3. Uses of metals :

1. For making utensils

2. For making electric wires

3. Manufacture of paints , rubber products , cosmetic , pharmaceuticals and alloys.

Uses of non-metals :

1. For making electronic components such as transistors , integrated circuits , microprocessors and chips used in computers.

2. Manufacture of fireworks , agricultural pesticides and artificial hair colours (dyes).

4. A metalloid is a chemical element that exhibits done properties of metals and some of non-metals.

5. soft metals : i) Lead ii) Gold

Explanation:

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