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प्रश्न
Represent with the help of a simple chart how matter is classified into pure or impure substances & further into elements, compounds & mixtures, with elements further segmented.
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उत्तर
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संबंधित प्रश्न
Define: Elements
Give two examples of Noble gases.
Answer the following question:
Why are copper and aluminium used to make electric wires?
Fill in the blank
A metal which is a liquid at room temperature is _______.
Fill in the blank
A diatomic gaseous element is _______.
Tick (√) the correct alternative from the choice given for the following statement.
Gold is used to make jewellery because
Write the names of elements from the following symbol:
Fe
What are elements? What are they made of?
Oxygen is very essential for us to live. It forms 21% of air by volume. Is it an element or compound?
Reason out
Elements are called semimetals.
