Captura de pantalla 2022 10 18 a la(s) 9.13.46

Atomic History

By Maria1234567890.
  • 450 BCE

    Empedocles

    Empedocles
    The first theories of matter were published in 450 BC. presented by Empedocles. C., stated that all matter consists of 4 resources: earth, wind, fire and water.
  • 430 BCE

    Democritus

    Democritus
    Democritus of Abdera called the basic elements of matter atoms, which literally means "indivisible".

  • John Dalton

    John Dalton
    John Dalton reported his first general explanation of the chemical theory of the atom, a cornerstone of modern chemistry.

  • J.J. Thomson

    J.J. Thomson
    In 1897, Thomson found the electron and later presented a model for the composition of the atom.

  • Ernest Rutherford

    Ernest Rutherford
    Ernest Rutherford discovered the nucleus of the atom.

  • Niels Bohr

    Niels Bohr
    Niels Bohr proposed a model of the atom in which the electron could only use certain orbits around the nucleus.

  • Louis DeBroglie

    Louis DeBroglie
    Louis de Broglie put forward the idea that particles, like electrons, could be described not just as particles but also as waves.

  • Werner Heisenberg

    Werner Heisenberg
    In 1927, he proposed an "uncertainty relation", setting limits on the accuracy with which they could realize the position and velocity of a parallel particle.

  • Erwin Schrödinger

    Erwin Schrödinger
    Schrödinger combined the wave behavior equations with the de Broglie equation to produce a mathematical model for the division of electrons in an atom.

  • James Chadwick

    James Chadwick
    Chadwick made an important discovery in the field of nuclear science: he taught the reality of neutrons, necessary particles devoid of electrical charge.