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John Dalton
John dalton was born -
John Dalton discovered the atomic theory.
John Dalton was one of the first to develop an atomic model. He thought that the atom was the smallest possible component of matter. -
John Dalton died.
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JJ Thomson
Joesph John Thomson was born. -
Robert Milikan
Robert Milikan was born. -
Ernest Rutherford
Ernest Rutherford was born. -
Niels Bohr
Niels bohr was born. -
JJ Thomson discovered the electrons.
He discovered the electrons -
Robert Milikan did the oil drop experiment.
He determined the size of the electron. -
Ernest Rutherford discovered the alpha and beta rays
The first to discover that atoms have a small charged nucleus surrounded by largely empty space, and are circled by tiny electrons. -
Niels Bohr discovered the nucleus
discovery of the nucleus and development of an atomic model. -
Ernest Rutherford died
October 19, 1937, Cambridge, United Kingdom -
JJ Thomson died.
August 30, 1940 -
Robert Milikan died
December 19, 1953, San Marino, CA -
Niels Bohr died
