Irene Villanueva Famous Dead Guy

By ivill83
  • 101

    Thales (624-546 B.C.)

    Thought all things were made of water
  • 101

    Democritus (460 B.C.)

    First person to think of the atom. Thought it was a solid sphere.
  • 101

    Aristotle (384 B.C-322 B.C)

    All substance were made of fire, water, earth, and air.

  • Isaac Newton

    Matter is formed of solid, massy impenetrable particles.

  • John Dalton

    1. Atomic theory
    2. all matter is made of atoms
    3. atoms are indivisible and indestructible
    4. All atoms of a given element are identical in mass and properties
    5. compounds are formed by a combination o ftwo or more different kinds of atoms
    6. A chemical reaction is a rearrangement of atoms
    7. He was the first person to have experimental evidence.

  • Henri Becquerel

    Discovered radioactivity and thought the atoms was a sphere.

  • Joseph John Thomson

    He is widely recognized for his discover of the electron. His model had negative charge in the atoms.

  • Ernest Rutherford

    He discovered the nucleus.

  • Millikan (1909-1912)

    Found the charge of an electron.

  • Niels Bohr (1911-1916)

    • created the Bohr model of the atom
    • thought that electrons orbited around the nucleus

  • Erwin Schrodinger

    • the quantum mechanical model
    • predicts the odds of electron location
    • proved Bohr model wrong

  • James Chadwick

    Proved the existence of neutrons.