an atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element every solid licqiud gas and palsma is composed of neutral or ionized atoms are very small typical size are arround 100PM Rajeev Rana 07-12-2015 0 Answers 0 0 TAGS atomthesmallestconstituentunitordinarymatterthathaspropertieschemicalelementeverysolidlicqiudgasandpalsmacomposedneutralionizedatomsareverysmalltypicalsizearround100PMDictionary Comment: Submit See all questions in Meaning in Hindi
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