
CH 3 Quiz 3A
Authored by Betsabe Quezada
Physics
8th Grade
Used 4+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is J. J. Thomson's atomic model called?
A. the nuclear model
B. the plum pudding model
C. the quantum-mechanical model
D. the Saturnian model
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Who proposed the planetary model of the atom?
A. Niels Bohr
B. Ernest Rutherford
C. Albert Einstein
D. James Chadwick
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which model of the atom incorporates quantum mechanics?
A. the plum pudding model
B. the quantum-mechanical model
C. the Rutherford model
D. the Dalton model
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following observations did not lead Rutherford to believe that most
of the atom's mass and positive charges were densely packed into a very small
space?
Some alpha particles bounced off the foil at sharp angles.
Some alpha particles emitted photons as they fell back into their original energy levels.
Some alpha particles were deflected at varying angles as they passed through the gold
foil.
Most alpha particles passed through the gold foil undeflected.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The Bohr model suggests that electrons move
in a flat ring around a massive, positively charged center.
only in distinct, spherical orbits at fixed distances from the nucleus.
randomly about the nucleus.
rapidly throughout a uniform, positively charged matrix.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aristotle first called particles atomos, from which we get our word atom.
False. Aristotle called particles atomos.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
John Dalton proposed that atoms are hard spheres of different sizes and masses.
False. He proposed that atoms can be divided into smaller particles.
False. He proposed that atoms are made of liquid substances.
True. He proposed that atoms are hard spheres of different sizes and masses.
False. He proposed that atoms are only found in gases.
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