The smallest unit that retains the chemical and physical properties of an element is a(n) ____.

Name: The smallest unit that retains the chemical and physical properties of an element is a(n) ____.
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An atom is the smallest unit of an element that retains its chemical properties. Protons and neutrons are subatomic particles, not units of elements. A molecule is the smallest unit of a compound, not an element, and a compound consists of two or more elements chemically combined.

The Smallest Unit That Retains the Chemical and Physical Properties