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460
Democritus
Democritus
Democritus was born in 460 bc and died in 370 bc.
he believed that the atoms were infinate number and was the first person to create an atomic theory. he also thought that they could combine with other atoms. -
John Dalton
John Dalton
He was born in september 6, 1766
John Dalton believed that everything was made of four elements.
he also sayed atoms can be neither created nor destroyed. -
JJ Thomson
John Dalton
John was born in december 18, 1856 in cheetham hall
he won the nobel prize in 1906 in physics,and he proposed a model that looked like a chocolate chip. -
Ernest Rutherford
Ernest Rutherford
he was born in august 31, 1871, and he won the nobel prize in chemistry. he also was a former student of thomson and he found his model was incorrect. -
Niels Bohr
[Niel Bohr](www.nobelprize.or)
niel won the nobel prize in physics and also proposed the nuclues and the specific energies. -
James Chadwick
James ChadwickJames Chadwick
james was born october 20 1891 and he worked for ernest rutherford. he also improved a possible theory of the existance of the nuetron. -
