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Properties of metals & non-metals - Science, Class 10 Video Lecture
FAQs on Properties of metals & non-metals - Science, Class 10 Video Lecture
| 1. What are the properties of metals? |  |
Ans. Metals have the following properties:
- Metals are generally solid at room temperature.
- They have metallic luster, meaning they are shiny.
- Metals are good conductors of heat and electricity.
- They are malleable, meaning they can be hammered into thin sheets.
- Metals are ductile, meaning they can be drawn into thin wires.
- They have high melting and boiling points.
| 2. What are the properties of non-metals? | |
Ans. Non-metals have the following properties:
- Non-metals can exist in all three states of matter: solid, liquid, and gas.
- They have a dull or non-shiny appearance.
- Non-metals are poor conductors of heat and electricity.
- They are brittle, meaning they break easily when subjected to stress.
- Non-metals have low melting and boiling points compared to metals.
| 3. Give an example of a metal and explain its properties. | |
Ans. An example of a metal is iron. Iron is a solid metal, it has a metallic luster, and it is a good conductor of heat and electricity. Iron is malleable, allowing it to be hammered into various shapes, and it is also ductile, allowing it to be drawn into wires. Iron has a high melting point, which is why it is commonly used in construction and manufacturing.
| 4. Give an example of a non-metal and explain its properties. | |
Ans. An example of a non-metal is sulfur. Sulfur can exist in the solid, liquid, and gas states. It has a dull appearance and is a poor conductor of heat and electricity. Sulfur is brittle, meaning it can easily break into pieces when subjected to stress. It has a relatively low melting and boiling point compared to metals. Sulfur is used in various industries, including the production of fertilizers and medicines.
| 5. How do the properties of metals and non-metals differ? | |
Ans. Metals and non-metals have several distinguishing properties. Metals are generally solid at room temperature, whereas non-metals can exist in all three states of matter. Metals have a shiny appearance, while non-metals have a dull appearance. Metals are good conductors of heat and electricity, while non-metals are poor conductors. Metals are malleable and ductile, while non-metals are brittle. Metals have high melting and boiling points, while non-metals have relatively low melting and boiling points.
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Dec 22, 2024 Last updated |
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