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Atomic Theory Scientists
Atomic Theory Scientists
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1
Who identified protons?
Rutherford
Bohr
Chadwick
Thomson
2
Who proposed the Plum Pudding Model?
Chadwick
Rutherford
Thomson
Dalton
3
Who is the Father of modern chemistry?
Democritus
Rutherford
Bohr
Dalton
4
Who is this scientist responsible for the discovery of the proton?
Chadwick
Bohr
Rutherford
Dalton
5
Bohr's model of the atom is called the _________________ model..
atomic
surrounding
planetary
orbiting
6
What is a cathode ray tube?
electrode
beaker
a vacuum
light
7
Who discovered the neutron?
Rutherford
Bohr
Millikan
Chadwick
8
Bohr disproved ____________ model of the atom?
Rutherford's
Thomson's
Chadwick's
Dalton's
9
What are cathode rays?
beams of alpha particles
beams of protons
beams of neutrons
beams of electrons
10
Who first said atoms were indivisible?
Rutherford
Democritus
Thomson
Dalton
11
Who was the first scientist to theorize the concept of an atom?
Dalton
Thomson
Aristotle
Democritus
12
In the gold foil experiment what was shot at gold foil?
Electrons
Gamma Particles
Neutrons
Alpha Particles
13
Who proved atoms were indivisible?
Democritus
Dalton
Rutherford
Aristotle
14
Which of the following is not one of the elements proposed by Aristotle?
sound
fire
water
earth
15
What did Rutherford discover with his gold foil experiment?
Atoms were mostly made of positively charged material.
Plum Pudding Model
Electrons
Atoms contain a central, positively charged nucleus.
16
Whose experiment is this?
Dalton
Rutherford
Chadwick
Thomson
17
Who performed experiments with this to discover the e-?
Schrodinger
Bohr
Rutherford
Thomson
18
Let's take a break. What year was the eraser discovered?
1790
1750
1720
1770
19
Whose oil drop experiment determined the mass and charge or the e-?
Thomson
Millikan
Rutherford
Chadwick
20
Who developed the 1st accepted atomic theory?
Bohr
Democritus
Dalton
Aristotle
21
Which part of Dalton's Atomic Theory has been disproved?
reactions rearrange elements
all atoms of the same element are identical
all matter is made up of atoms
atoms of elments combine to form compounds