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प्रश्न
What are elements? What are they made of?
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उत्तर
- Elements are chemically the simplest substances and hence cannot be broken down using chemical reactions.
- It is made of entirely from one type of atom.
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संबंधित प्रश्न
Fill in the blank
A pure substance has definite.................. and constant ..............
Give two examples of Metals.
Give one use of the following substance:
Iron
Find the atomicity of the Following molecule:
Aluminium Suiphide
Indicate whether the following statement is true or false:
Molecules can exist independently.
Tick (√) the correct alternative from the choice given for the following statement.
Sugar is a compound which consists of the elements
Select the correct answer from the choice in the bracket.
The least reactive metal.
State why brass is considered as a homogenous mixture while a mixture of iron & sulphur – heterogenous.
An element is sonorous and highly ductile. Under which category would you classify this element? What other characteristics do you expect the element to possess?
Name the element which is used in toothpaste to strengthen our teeth.
