science atomic model

By micahmicahmicah

  • Atomic Model

    John Dalton devised that matter consisted of indivisible atoms. He proposed that they cannot be subdivided, created or destroyed.

  • Plum-pudding model (1904)

    Joseph John Thomson's model proposed that an atom has an overall neutral charge. In an atom, positive charges and negative charges are equal.

  • Nuclear Model

    Ernest Rutherford's model showed that atoms are mostly empty space. It's mass is concentrated in the centre. In an atom, electrons are found outside the nucleus.

  • Planetary Model

    Niels Bohr stated that electrons orbit the nucleus and have varying orbits.

  • Quantum Mechanical Model

    Erwin Schrödinger proposed that electrons don't move in orbits but exist at different levels. The electron cloud is where the negative charge comes from.