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प्रश्न
Elements are mainly classified into metals and non-metals. State six properties of metals which differ from non-metals.
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उत्तर
| Properties | Metals | Non-metals |
| 1. State | Metals are generally solids at room temperature. | Non-metals are gases, liquids, soft solids at room temperature. |
| 2. Lustrous | Metals have lustre i.e. shine. | Non-metals do not have lustre i.e. do not shine. |
| 3. Malleability | Metals are malleable i.e. can be beaten into sheets. | Non-metals are non-malleable i.e. cannot be beaten into sheets. |
| 4. Ductility | Metals are ductile i.e. can be drawn into wires. | Non-metals are non-ductile i.e. cannot be drawn into wires. |
| 5. Conductivity | Metals are good conductors of heat and electricity. | Non-metal are poor conductors of heat and electricity. |
| 6. Melting and Boiling point | Metals have high melting and boiling points. | Non-metals have low melting and boiling points. |
| 7. Density | Metals have high density. | Non-metals have low density. |
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संबंधित प्रश्न
Give the symbol of the following element:
Zinc
State the type of element for the following:
Boron
State the type of element for the following:
Phosphorus
Write the radical of the following valency:
Zinc
State the valency of the following metallic element and write symbol with the valency
Magnesium
State the valency of the following metallic element and write symbol with the valency
Zinc
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Bisulphite
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Sulphide
The symbol of tungsten is _______.
The name copper was taken from ______.
