Biology
Grade-9
Easy
Question
_________ is the small and fundamental unit of matter.
- Molecule
- Organ
- Atom
- Tissue
Hint:
An atom is the smallest unit of matter that retains all of the chemical properties of an element.
The correct answer is: Atom
- The atom is the smallest and most fundamental unit of matter. It consists of a nucleus surrounded by electrons.
- Atoms form molecules.A molecule is a chemical structure consisting of at least two atoms held together by one or more chemical bonds
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