An _______ is the smallest unit of matter which can exits independently and retain all the physical and chemical properties of that matter.

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Solution

If we divide the matter into smaller parts, we find that matter is made up of small units called atom.
An atom posses all the physical and chemical properties of matter.
Atoms of inert gases such as Neon, Argon can exist independently.
However, atoms of some elements may combine with other elements to achieve a stable configuration.
Hence, An atom is the smallest unit of matter which can exits independently and retain all the physical and chemical properties of that matter.

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2. An atom is a smallest unit of matter, which has an independent existence and can retain complete physical and chemical properties.

The smallest unit of a pure substance which always exist independently and can retain all the physical and chemical properties of that substance is called a molecule.

A ______ is the smallest unit of matter that exhibits all its properties.

Give an example to show that constituents of a mixture always retain their physical and chemical properties.

Assertion: Atom is the smallest portion of matter which can take part in chemical combination.

Reason: Atoms of all elements can exist independently.

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