Who introduced atomic theory?

Democritus first suggested the existence of the atom but it took almost two millennia before the atom was placed on a solid foothold as a fundamental chemical object by John Dalton (1766-1844). Although two centuries old, Dalton's atomic theory remains valid in modern chemical thought. 1) All matter is made of atoms.
A.

Who was the first person to come up with the idea of an atom?

A bust of Democritus (or Democrites), who came up with the idea of indivisible atoms. The earliest known proponent of anything resembling modern atomic theory was the ancient Greek thinker Democritus. He proposed the existence of indivisible atoms as a response to the arguments of Parmenides, and the paradoxes of Zeno.
  • Who is the discovery of atom?

    J. J. Thompson
  • Who discovered element?

    Questions and Answers
    Element NameDiscovered ByYear
    AluminumHans Christian Oersted1825
    AmericiumGlenn T. Seaborg Ralph A. James Leon O. Morgan Albert Ghiorso1944
    AntimonyKnown since ancient times?
    ArgonSir William Ramsay Lord Rayleigh1894
  • Who discovered the molecule?

    It is a common misconception that James Watson and Francis Crick discovered DNA? in the 1950s. In reality, DNA was discovered decades before. It was by following the work of the pioneers before them that James and Francis were able to come to their ground-breaking conclusion about the structure of DNA in 1953.
B.

Who was the person who invented the periodic table?

Dimitri Mendeleev
C.

When was the first model of the atom created?

Democritus was a Greek philosopher (470-380 B.C.) who is the father of modern atomic thought. He proposed that matter could NOT be divided into smaller pieces forever. John Dalton created the very first atomic theory.

Updated: 3rd October 2019

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