
Differentiate between metals and nonmetals on the basis of their physical properties.
Answer
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Hint :Elements can be divided into metals and non-metals on the basis of certain physical properties such as malleability, ductility, etc.
Complete Step By Step Answer:
Note :
Metals are good conductors of heat and therefore, it is used to make cooking utensils. Aluminium, which is a metal, is used to produce electrical cables. Non-metals like nitrogen are used in fertilizers.
Complete Step By Step Answer:
Metals | Non-metals |
1. Ductility: Metals can be converted into wires by stretching and hence they are ductile. | 1. Non-metals are not ductile. |
2. Malleable: Metals can be converted into thin sheets by hammering; thus, they are malleable. | 2. Non-metals are non-malleable. |
3. Conduction: Metals are good conductors of heat and electricity. | 3. Non-metals are bad conductors of heat and electricity. |
4. Luster: Metals are lustrous.Example- gold, silver, aluminium | 4. Non-metals are non-lustrous.(Except- Iodine, which is a lustrous non-metal) |
5. Sonorous: Metals are sonorous i.e., it produces sound when struck with other hard metals. | 5. Non-metals are non-sonorous. |
6. Tensile strength: Metals have high tensile strength. (except sodium and potassium) | 6. Non metals have low tensile strength. |
7. Physical state: Metals are solid at room temperature. (except – mercury, which is a liquid) | 7. Non-metals may be solids, liquids, or gases at room temperature. |
8. Density: Metals have high density. | 8. Non-metals have low density. |
9. Melting point: Metals generally have a high melting point except for gallium and caesium which have low melting points. | 9. Non-metals have a low melting point.(Except – Diamond and graphite which have high melting point) |
Note :
Metals are good conductors of heat and therefore, it is used to make cooking utensils. Aluminium, which is a metal, is used to produce electrical cables. Non-metals like nitrogen are used in fertilizers.
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