__________ & molecules are the fundamental building blocks of matter.
A
Cells
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B
Ions
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C
Atoms
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D
None of the above
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Solution
The correct option is A Atoms Atoms & molecules are the fundamental building blocks of matter. Atom is the smallest particle of an element that retains all its properties and enters into a chemical reaction. Molecule is the smallest particle of matter that has independent existence and retains all the properties of the substance.