Model of the Atom Timeline
by katy blevins
John Dalton model of an atom - 1803
john dalton pictures atoms as as tiny, indestructible particles, with no internal structure
J.J Thompson model of an atom - 1897
a british scientist, discovers the electron, leading to his "plum Pudding" model. he pictures electrons embedded In a sphere of positive electric charge
Hantaro Nagaoka model of an atom - 1904
a Japanese physicist, suggests that an atom has a central nucleus. electrons move in orbits like the rings around saturn
Ernest Rutherford model of an atom - 1911
he states that an atom has a dense, positivity charged nucleus. Electrons move randomly in the space around the nucleus
Neils Bohr's model of an atom - 1913
the electrons move in spherical orbits at fixed distances from the nucleus