Question

The smallest particle of a substance that is capable of independent existence and retaining the properties of the original substance is called

Answer 1

Correct Answer is Molecule .

Explanation:

• Atom is the smallest particle of matter which does not have independent existence and they cannot exist in free state.
• Molecule is an  electrically neutral group of two or more atoms chemically bonded together .
• Thus combination of atoms is called molecule.
• Molecules can exist in free state.                                                                               Hence " Molecule is the smallest particle of a substance which has the properties of that substance and can exist in free state.

Answer 2

Atom is the smallest particle of an element which has capable of independent existence and holding properties of the original substances.

The atom retains the physical and chemical properties of the substance to retain same.

It will take part chemical reaction.

Atoms are also considered as invisible that cannot divide by anything.