Question

define
1 atom
2 atomicity
3 molecule
4 formula​

Answer 1

Answer:

atom is particle

Explanation:

thanks for free points man

Answer 2

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Atom:-

• An atom is the smallest unit of ordinary matter that forms a chemical element.

Atomicity:-

• Atomicity is defined as the total number of atoms that constitute a molecule. 

Molecule:-

• Molecule is a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance.

Formula:-

• The formula is a fact or a rule written with mathematical symbols. It usually connects two or more quantities with an equal to sign.

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