Sagot :
Answer:
An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small, typically around 100 picometers across
Explanation:
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Answer:
An atom is the smallest unit of ordinary matter that forms a chemical element.Every solid,liquid,gas,and plasma is compose of neutral or ionized atoms. Atoms are extremely small, typically around 100 picometers across