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What is an atom

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What is an atom
  • 2 answers

.. ... 6 years, 2 months ago

An atom is the smallest constituent unit of ordinary matter that constitutes a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small; typical sizes are around 100 picometers (1×10−10 m, a ten-millionth of a millimeter, or 1/254,000,000 of an inch).

Archana Shukka 6 years, 2 months ago

What is cell
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