Atomic Timeline

By Savvyh1227
  • 460 BCE

    Democritus

    Democritus
    Know for formulating the atomic theory of the universe.
  • 427 BCE

    Plato

    Plato
    Introduced the atomic theory!
  • 17 BCE

    The Alchemist

    The Alchemist
    Mixture of practical knowledge and speculation on the nature of matter. Later called Chemistry.

  • Rober tBoyle

    Rober tBoyle
    was an Irish natural philosopher, he made contributions to chemistry and physics. He played an important role in the scientific revolution.

  • Antione Lavoisier

    Antione Lavoisier
    Knew that oxygen was a key substance in combustion, and he even named the element.

  • Amadeo Avogadro

    Amadeo Avogadro
    Discovered element could exist as molecules rather than individual atoms

  • Dimitri Mendeleev

    Dimitri Mendeleev
    Created the first periodic table

  • Pierre and Marie Culey

    Pierre and Marie Culey
    Discovered atoms themselves were radioactive

  • Albert Einstein

    Albert Einstein
    He mathematically proved the existence of atoms.

  • Ernest Rutherford

    Ernest Rutherford
    First to discover atoms have a Tony charged nucleus around an empty space

  • Henry G. J Moslely

    Henry G. J Moslely
    Discovered atomic number of all the elements using x-rays.

  • Electron Cloud Model

    Electron Cloud Model

  • JJ Thompson

    JJ Thompson
    Invented the idea that all atoms have small negatively charged subatomic particles within the atom.

  • John Dalton

    John Dalton
    Best known for introducing the atomic theory and his research into color blindness

  • Robert Millikan

    Robert Millikan
    Discovered the charge of an electron.

  • Niels Bohr

    Niels Bohr
    made fundamental contributions to understanding atomic structure and quantum theory

  • James Chadwhich

    James Chadwhich
    Discovered the neutron