what is atomic mass and molecules
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Atomic mass is the mass of a single atom of a chemical element.
Molecules:- The smallest unit into which a substance a substance can be divided without changing it's chemical nature.
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Atomic number: The number of protons present in an atom is called its atomic number.
The number of electrons present in a neutral atom is equal to the number of proton.
Molecules: A molecule is an electrically neutral group of two or more atoms chemically bonded together.
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