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DEMOCRITUS

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nybenah summerlin

on 25 October 2016

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Transcript of DEMOCRITUS

DEMOCRITUS
DIED IN 370 BC
THE universe OF ALL MATTER ABOY THE FOLLOWING principals EVERYTHING IS COMPOSED OF ATOMS AND THAT THEY ARE INDESTRUCTIBLE
JOHN DALTON
All matter is made of atoms. Atoms are indivisible and indestructible

1803

MANCHESTER ENGLAND

niels bohr
1913
Copenhagen
proposed a theory for the hydrogen atom based on quantum theory that energy is transferred only in certain well defined quantities
ernest rutherford
1911
he demonstrated that the atm has a tiny nucleus
nygbenah summerlin
1B

ROBERT MILLIKAN
1908

CHICAGO
oil drop experience in which he measured
the charge on a single electron




























































































































































































AN









































































J.J THOMSON
1897
HE DISCOVERED THE electron BY experiencing with a crookes and cathode ray ,tube
1
erwin schrodinger
an austrian physicist took the bohr atom model one step further
Louis de Broglie

France
his ideas were a basis for developing the wave mechanical theory. this theory has greatly improved our knowledge of the physical nature on the atomic scale. He received the Nobel Prize for Physics on his wave nature of electrons discovery in 1929.

james chadwick

1932
dicovered nuclear science
proved exist of neutron CHRLOTTENBUG
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