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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
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of its
Acetate
Give the symbol of the following element:
Fluorine
Give the symbol of the following element:
Sulphite
Write the radical of the following valency:
Zinc
Write the radical of the following valency:
Bromine [Bromide]
Give the formula of the following gas:
Nitrogen
State the valency of the following metallic element and write symbol with the valency
Chromium
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).
Sulphate
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).
Dichromate
In the same way in chemistry, each element is denoted by a ______.
