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Development of Atomic Theory
By Jennifer True
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Last updated over 5 years ago
10 questions
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Question 1
1.
Describe Democritus's model of the atom
A the plum-pudding model
B a small solid sphere
C the planetary model
D the nuclear model
Question 2
2.
Click all that apply to Dalton's atomic theory
atoms are indivisible
all atoms of the same element are alike
Question 3
3.
The Greek philosopher Democritus was one of the first to suggest the existence of atoms.
True
False
Question 4
4.
The word "atomos" is greek for _____________
invisible
indivisible
atoms
divisible
Question 5
5.
What did J.J. Thomson discover?
A nucleus
B proton
C electron
D neutron
Question 6
6.
Check all that apply to J.J. Thomas's atomic theory
Question 7
7.
Which Scientist used the "Gold-Foil Experiment"
A Democritus
B Rutherford
C Aristotle
D Thomas
Question 8
8.
Who discovered the nucleus?
A Rutherford
B Thomas
C Democritus
D Dalton
Question 9
9.
In Rutherfords model, what is the charge of the nucleus?
no charge
positive
negative
Question 10
10.
Check all that Rutherford and his team concluded.
atoms contain electrons
there is a small core to the atom
Compounds form when atoms of different elements combine in whole number ratios
atoms contain subatomic particles
all matter is made up of atoms
A discovered the electron
B discovered the neutron
C the plum-pudding model
D each atom was a square that was filled with positively charged fluid
electrons were represnted as "plums" while the "pudding" was positively charged
studied the behavior of cathode rays when exposed to a magnetic field
the positive charge of an atom is found in the nucleus
atoms contain neutrons
Most of the atom is empty space, where the low mass electrons are found.