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400
Democirtus(Brittany)
First one to know that there was an atom -
John Dalton(Brittany)
Came up with atomic theory's -
Dmitri Mendeleev(brittany)
He created the periodic table -
James Maxwell(brittany)
Created an dynamic theory of elements -
George Johnstone Stoney (keyaira)
Coins the word "electron" as a fundamental unit of charge -
JJ Thompson(keyaira)
Showed that Cathode rays are composed of electrons and who measured the ratio of change to mass for the electron. -
Ernest Rutherford(khala)
Ernest thought of the atom having a central positive nucleus surrounded by negative orbiting electrons. -
Niels Bohr
He classified that electrons travel in stationary orbits defined by their angular momentum and electrons have the lowest level. -
H.G.J. Moseley
Description- He argued that the x-rays should depend on the charge on the nucleus . So that means the atomic number was equal to the positive charge. -
Schrodinger
He contributed my developing the mathematics description that describe the paths of electrons would most likely follow in their orbits around nucleus -
James Chadwick(khala)
James Chadwick proved the atomic nucleus contained a neutral particle which had been proposed.
