Chemistry atom proton electron animation 17

RAVNEET SINGH

By psharmaims

  • JOHN DALTON

    JOHN DALTON
    John Dalton believed that element are made of atoms. He said different elements have different atoms. He thought compounds are made of different elements.

  • ERNST RUTHERFORD

    ERNST RUTHERFORD
    Ernst discovered that alpha particles have a positive charge. The alpha particles either reflected of went through the gold foil.

  • J. J. THOMPSON

    J. J. THOMPSON
    Thompson discovered cathode rays. He found out the charge of an electron is negative. Electrons move from the negitive end to the positive end.

  • NIELS BOHR

    NIELS BOHR
    Bohr believed that all electrons are the same. He believed electrons orbit the nucleus.