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What is the smallest or basic unit of matter?
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2. Chemistry
Atoms - Smallest Unit of Matter
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Which of the following is the smallest unit of matter?
A
Atom
B
Organism
C
Cell
D
Molecule
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Begin by understanding the hierarchy of biological organization. The smallest unit of matter is fundamental to this hierarchy.
Recognize that atoms are the basic building blocks of matter. They consist of protons, neutrons, and electrons.
Compare atoms to molecules. Molecules are formed when two or more atoms bond together, making them larger than individual atoms.
Consider cells and organisms. Cells are composed of many molecules and are the basic unit of life, while organisms are made up of multiple cells.
Conclude that the atom is the smallest unit of matter, as it is the most basic component from which molecules, cells, and organisms are built.
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