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CISCEICSE ICSE Class 8
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History of Atom

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History of Atom:

Acharya Maharishi Kanad (6th Century B.C.) Democritus (5th Century B.C.)
  1. Kanad was an Indian philosopher who lived in the 6th century B.C.
  2. He suggested that matter can only be divided into smaller pieces up to a certain point.
  3. Beyond this point, matter cannot be divided any further, and these smallest, indivisible particles are called “paramanu.”
  4. Kanad believed that paramanu are the fundamental building blocks of matter and are indestructible.
  1. Democritus, a Greek philosopher from the 5th century B.C., shared a similar idea.
  2. He proposed that matter is made up of extremely small particles that cannot be divided.
  3. He named these smallest particles “atom,” a word derived from the Greek term “atomos,” meaning “uncuttable” or “indivisible.”
  4. Democritus believed that atoms are the smallest units that make up all matter and cannot be further divided.
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