Who Proved the Existence of Atoms? Key Contributions from Dalton and Einstein

Explore how John Dalton and Albert Einstein contributed to proving atoms' existence with atomic theory and Brownian motion.

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John Dalton is credited with the modern atomic theory, but Albert Einstein provided experimental proof of atoms in 1905 through his explanation of Brownian motion, which demonstrated how particles moved due to atomic interactions.

FAQs & Answers

  1. Who is known for the modern atomic theory? John Dalton is known for the modern atomic theory, which laid the foundation for our understanding of atomic structure.
  2. What evidence did Einstein provide for the existence of atoms? Albert Einstein provided experimental proof of atoms in 1905 through his explanation of Brownian motion, demonstrating that particles move due to atomic interactions.
  3. What is Brownian motion? Brownian motion refers to the random movement of microscopic particles suspended in a fluid, which is caused by collisions with atoms and molecules.
  4. How did the atom theory evolve over time? The atomic theory has evolved from early philosophical concepts to modern understanding, incorporating contributions from scientists like Dalton, Thomson, Rutherford, and Einstein.

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