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प्रश्न
Give Two Examples for Each of the Following: Non-metals
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उत्तर
Carbon, sulphur, oxygen.
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संबंधित प्रश्न
Name the technique that you use if only the solid component of a solution is required.
Define: Compounds
Name: the Hardest Naturally Occurring Substance
Tick (√) the correct alternative from the choice given for the following statement.
Atoms of different kinds combine to form molecules of
Tick (√) the correct alternative from the choice given for the following statement
A gaseous non-metal.
Explain the difference between Atoms and molecules.
Elements are broadly classified into metals and non-metals. State six general differences in the physical properties of metals and non-metals. State two metals and two non-metals which contradict with the general physical properties – giving reasons. State one difference in property between metalloids and noble gases.
Match the following.
| Atom | Building block of matter |
| Element | Atoms of different kinds |
| Compound | Atoms of the same kind |
| Molecule | Smallest unit of a substance |
Oxygen is very essential for us to live. It forms 21% of air by volume. Is it an element or compound?
Complete the table by writing the symbols of the following elements
| Element | Symbol |
| Aluminum | Al |
| Nickel | |
| Bromine | |
| Helium | |
| Magnesium |
