discovery of the atom

By lilydeaton
  • Dalton: solid sphere model

    Dalton: solid sphere model

    Dalton thought the atoms were the smallest particles of matter, he envisioned them as solid, hard spheres, like billiard balls, so he used wood balls to model them.
  • Thompson: the plum pudding model

    Thompson: the plum pudding model

    The plum pudding model is defined by electrons surrounded by a volume of positive charge, like negatively-charged “plums” embedded in a positively-charged “pudding”
  • Rutherford: the nuclear model

    Rutherford: the nuclear model

    The model described the atom as a tiny, dense, positively charged core called a nucleus, in which nearly all the mass is concentrated, around which the light, negative constituents, called electrons, circulate at some distance, much like planets revolving around the Sun.
  • Bohr: The Bohr (Planetary) Model

    Bohr: The Bohr (Planetary) Model

    The Bohr Model is a planetary model in which the negatively charged electrons orbit a small, positively charged nucleus similar to the planets orbiting the sun.
  • Schrodinger: Quantum Mechanics Model

    Schrodinger: Quantum Mechanics Model

    Schrodinger used the wave-particle duality of the electron to develop and solve a complex mathematical equation that accurately described the behavior of the electron in a hydrogen atom.

  • Today's Date: July 14th 2022