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Scientists
Scientists
25
Chemistry
10th Grade
12/17/2008
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Term
Bohr
 Definition
Put neutrons in planetary motion model
Term
Chadwick
 Definition
Discovered neutron
Term
Democritus
 Definition
First suggested existence of tiny particles
Term
Dalton
 Definition
Father of modern atomic theory
Term
Dalton
 Definition
Created atomic theory
Term
Dalton
 Definition
Atom is a solid, indestructible sphere
Term
Crookes
 Definition
Investigated why gases glow
Term
Crookes
 Definition
Created Cathode Ray tube
Term
Crookes
 Definition
Created precursor to the TV tube
Term
Thomson
 Definition
Discovered electron
Term
Thomson
 Definition
Plum Pudding Model
Term
Millikan
 Definition
Determined charge on a single electron
Term
Thomson
 Definition
Charge to Mass ratio
Term
Millikan
 Definition
Oil drop experiment
Term
Roentgen
 Definition
Discovered x-rays
Term
Becquerel
 Definition
Disovery of radioactivity
Term
Becquerel
 Definition
Fogging on photo plates
Term
Becquerel
 Definition
Fogging on photo plates
Term
Curie (marie)
 Definition
Discovered polonium
Term
Rutherford
 Definition
Planetary motion model
Term
Rutherford
 Definition
Discovered nucleus
Term
Rutherford
 Definition
Gold Foil Experiment
Term
Geiger
 Definition
Student of Rutherford
Term
Geiger
 Definition
First Electric Particle Counter
Term
Geiger
 Definition
Determined alpha partiles had 2 protons and 2 neutrons
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