Download Ernest Rutherford

ERNEST RUTHERFORD
Determined the structure of the atom
First to split the atom
HANS GEIGER
Inventor of the Geiger counter to measure
radiation
ERNEST MARSDEN
Found that a few scattered alphas at angle
over 140 degrees from the beam
Alpha particles-helium without electrons
(positive)
JAMES CHADWICK
In 1932, Chadwick made a fundamental
discovery in the domain of science; he
proved the existence of nuetrons
He prepared the way towards the fission of
uranium 235 and towards the creation
of the atomic bomb
He was awarded the Hughes Medal of
Royalty Society (1932) and Nobel Prize
for Physics (1935)
EXPERIMENTS
Ernest Rutherford
Worked with Geiger and Marsden to prove that
the nucleus is positive
Hans Geiger
Involved in a number of experiments that lead
to Rutherford’s breakthrough theory of the
atom
Ernest Marsden
Experiments to study the scattering of alpha
particles by thin metal foils
James Chadwick
Worked with Rutherford, thought there had to
be more to an atom because the atomic mass
was too large.