Came up the Atomic Theory

Found the nucleus

Found the protons

Found atoms contain subatomic particles

Found the proton

Found the neutron

Found the electron

Found the nucleus

Found the proton

Found the neutron

found the electron

found the nucleus

Found proton

found neutron

found nucleus

came up with atomic atom

Found the atom

Found the nucleus

Found the electron

Found the neutron

Found the electron

Said electrons moved in waves

said electrons sit in orbits

Came up with the idea of orbitals

Developed the Atomic Theory

Described electrons as moving in orbitals

Describes electrons moving in orbits

Came up with the Uncertainty Principle

came up with the Uncertainty Principle

came up with the Atomic Theory

came up with the Photoelectric Effect

came up with the speed of light

found the constant relating energy and frequency

found the constant relating wavelength and energy

found the relationship between the electron and proton

Found the energy of a photon

asked if matter can behave as waves

asked if waves can act as particles

confirmed electrons behave as waves

confirmed the idea of electrons moving in orbitals

confirmed light can move electrons

confirmed the uncertainty principle

found theory of classical mechanics

confirmed the structure of the atom

Developed the Atomic Theory

Developed the Quantum Mechanical Theory

Developed the Uncertainty Principle

Developed the Photoelectric Effect

Democritus

Dalton

Einstein

Louis de Broglie