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Atomic Scientists Review Flashcards | StudBud
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Atomic Scientists Review
Atomic Scientists Review
20 terms
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StudBud Administration
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A review of the scientists who contributed to the atomic model
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
Who FIRST theorized that atoms were indivisible?
Democritus
Rutherford
Dalton
Aristotle
2
Who performed the Oil Drop Experiment?
Rutherford
Chadwick
Millikan
Dalton
3
In the Gold Foil Experiment, what was shot at the gold foil?
Gamma Particles
Alpha Particles
Neutrons
Electrons
4
Who discovered the neutron?
Dalton
Chadwick
Thomson
Rutherford
5
Who discovered the proton?
Rutherford
Dalton
Chadwick
Thomson
6
Who developed the first modern atomic theory?
Chadwick
Dalton
Thomson
Rutherford
7
What did the Gold Foil Experiment prove?
There were neutrons
There was a positively charged nucleus
Electrons were negatively charged
Electrons orbit the nucleus
8
What did Millikan discover about the electron?
He named it
It was found outside the nucleus
It did not exist
Its mass and charge
9
Who was known for the “plum pudding” model?
Thomson
Dalton
Rutherford
Chadwick
10
Why was Aristotle believed over Democritus?
He wasn't
He was a better liar
He had visual proof
He was more popular
11
What is a cathode ray?
Water
Light
Electrons
Energy
12
The mass of most elements is double the number of protons due to the existence of?
neutrons
nucleus
electrons
protons
13
Who said everything is made up of four elements (earth, fire, air, water)?
Thomson
Dalton
Democritus
Aristotles
14
Which of Dalton’s postulates is no longer accepted?
All matter is made of atoms
Atoms of the same element are identical
Atoms combine to make compounds
Atoms are indivisible
15
Who was the very first scientist to theorize an atom?
Aristotle
Thomson
Democritus
Dalton
16
Which subatomic particle is at least 1000x smaller than the smallest atom?
nucleus
proton
electron
neutron
17
Which experiment did Rutherford perform?
Oil Drop
Half-Life
Gold Foil
Cathode Ray Tube
18
Bohr disproved whose model of the atom?
Chadwick
Dalton
Thomson
Rutherford
19
Who discovered the electron?
Chadwick
Rutherford
Dalton
Thomson
20
Who found the nucleus of the atom?
Rutherford
Chadwick
Thomson
Dalton
