Science

Atomic model

By Campbell Starley
  • 750 BCE

    The Alchemist

    The Alchemist
    Around 500-1700 B.C the Alchemist tried to fin a substance that could transfer common metals into gold or silver. They didn't succeed but they found they made the scientific model
  • 470 BCE

    Democritus

    Democritus
    He was a Greek philosopher who introduced the idea of an atom.
  • 428 BCE

    Plato

    Plato
    He was a greek philospher who came up with the idea of elements in 428 B.C
  • Jan 1, 1500

    Solar System Model

    Solar System Model
    The solar system Model was made in the 1500s, by a guy named Nicolaus Copenicus.

  • Robert Boyle

    He was a natural philosopher, chemist, physicist and inventor. He was most famous for the Boyles laws.

  • Antone Lavoisier

    Antone Lavoisier
    A chemist who revolutionized chemistry and biology. He was most famous for the law of conservation of mass.

  • Billard Ball Model

    Billard Ball Model
    In 1803 John Dalton atoms where the smallest particles of matter, so he used wooden balls to model them.

  • John Dalton

    John Dalton
    He was an English chemist, physicist and meteorologist. He was best known for the atomic theory.

  • Amedeo Avogardo

    Amedeo Avogardo
    He first proposed what is now known as the AVogardo law in 1811.

  • Dmitri Mendeleev

    Dmitri Mendeleev
    In 1869 he created the periodic table of elements.

  • J.J Thompson

    J.J Thompson
    He was a physicist who determined the charge to mass ratio of electrons around 1892.

  • The Curies

    The Curies
    They identified and studied radioactive elements around 1898.

  • Plum Pudding model

    Plum Pudding model
    The plum pudding model was first proposed by J.J Thompson in 1904.

  • Ernest Rutherford

    Ernest Rutherford
    In 1909 he determined that the nucleus of a atom is positively charged. As a result of the alpha particles scattering gold experiment

  • Neils Bohr

    Neils Bohr
    A physicist who developed the Bohr model.

  • Robert Millikan

    Robert Millikan
    He was a physicist who was most famous for creating the oil-drop experiment

  • Henry G.J Mosley

    Henry G.J Mosley
    In 1914 he discovered the numbers of protons in elements and their atomic numbers.

  • Werner Heisenberg

    Werner Heisenberg
    In 1925 he published a breakthrough paper on quantum mechanics.

  • Electron Cloud Model

    Electron Cloud Model
    The model consist of small but massive nucleus surrounded by a cloud of rapidly moving electrons. The model was first proposed by Ewrin Shrodinger in 1926.

  • Ewrin Schrodinger

    Ewrin Schrodinger
    In 1933 he won a Nobel prize and he is won of the fathers of quantum mechanics

  • James Chadwick

    James Chadwick
    In 1935 he was awarded the Nobel prize for discovering the neutron.

  • Albert Einstein

    Albert Einstein
    He was the greatest physicist ever. He contributed Aton to quantum mechanics.