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प्रश्न
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal which is required for combustion.
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उत्तर
Oxygen
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संबंधित प्रश्न
Fill in the blank
Use of a ................. to separate the components of a mixture of solids is based on the difference in the size of the components
Name: Three different forms of carbon
Answer the following question:
What do you understand by the statement: ‘metals are ductile and malleable’?
Fill in the blank
A diatomic gaseous element is _______.
Indicate whether the following statement is true or false:
Molecules can exist independently.
Indicate whether the following statement is true or false:
Molecules combine to form atoms
Draw a labelled diagram of an atom including its nucleus, orbits & their contents.
Write the names of elements from the following symbol:
Ti
Differentiate between elements and compounds.
Complete the table:
| Element | Latin Name | Symbol |
| Mercury | ______ | Hg |
| Lead | Plumbum | ______ |
| Iron | ______ | Fe |
| Potassium | Kalium | ______ |
