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प्रश्न
Give two example of elements.
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उत्तर
Example: Hydrogen, Oxygen is made from atoms containing a single proton and a single electron.
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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
State four differences between compounds and mixtures.
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Sand
Name: an Inert Gas
Give three differences between metals and non-metals.
Define: Atom
Mention three gaseous elements and write their molecular formulae
Write the names of elements from the following symbol:
Cd
State why brass is considered as a homogenous mixture while a mixture of iron & sulphur – heterogenous.
What are elements? What are they made of?
