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प्रश्न
Define: Atom
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उत्तर
Atom: An atom is the smallest indivisible unit of an element which exhibits all the properties of that element and may or may not have an independent existence. An atom is the smallest indivisible unit of an element which exhibits all the properties of that element and may or may not have an independent existence.
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संबंधित प्रश्न
Define: Molecule
Give reason: Graphite is used to make a lead of the pencils.
Fill in the blank
The most abundant element in the earth’s crust is _______.
Fill in the blank
A metal which is a poor conductor of electricity is _______.
Write the names of elements from the following symbol:
Fe
Differentiate between homogenous & heterogeneous mixtures.
Select the correct answer from A, B, C, D & E for the statement given below :
A metalloid.
Give an example of each mixture having the following characteristics. Suggest a suitable method to separate the components of this mixture
Two or more coloured constituents are soluble in some solvent.
Higher-Order Thinking questions:
Why is hydrogen considered an element?
Name the element which is used in toothpaste to strengthen our teeth.
