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Atomic Theory Quiz PS Flashcards | StudBud
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Atomic Theory Quiz PS
Atomic Theory Quiz PS
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1
What are the 3 subatomic particles that make up an atom?
proton, electron, nucleus
proton, electron, neutron
proton, neutron, and nucleus
proton, atomic mass unit, nucleus
2
What is the charge of a proton have?
+1
0
-1
neutral
3
Where are neutrons located?
inside electrons
outside the nucleus
inside protons
inside the nucleus
4
What charge does a neutron have?
neutral
positive
1
negative
5
What charge does an electron have?
none
positive
neutral
negative
6
What was Democritus credited with discovering?
the nucleus
modern atomic theory
1st theory about atoms
the electron
7
What is the number of protons plus neutrons?
subatomic particle
atomic number
isoptope
mass number
8
Define mass number
The number of protons for each atom of an element
Negatively charged subatomic particle
The number of protons plus neutrons
Positive charged subatomic particle
9
What was Ernest Rutherford credited with discovering?
the electron
Modern atomic theory
The nucleus
wave equation
10
Which scientist discovered the electron?
Democritus
Rutherford
John Dalton
JJ Thomson
11
What is the correct order of scientists of their work related to the atomic theory from earliest to most recent?
Ernest Rutherford, JJ Thomson, John Dalton, & Democritus
John Dalton, JJ Thomson, Democritus, & Ernest Rutherford
Democritus, John Dalton, JJ Thomson, Ernest Rutherford
JJ Thomson, John Dalton, Ernest Rutherford, & Democritus
12
Define isotope
Negatively charged subatomic particle
Center of an atom
Atoms with the same number of protons but different numbers of neutrons
Positive charged subatomic particle
13
What does the atomic number tell us?
the number of subatomic particles
the mass number
the number of protons and electrons
the number of neutrons
14
All matter is made of what?
Atoms
Energy
Electrons
Compounds
15
T or F: Every element on the periodic table has a letter symbol
True
False
16
What are atoms called that have the same number of protons but different number of neutrons?
subatomic particle
nucleus
atomic number
isotope
17
Which of these is NOT a subatomic particle of an atom?
Proton
Quantron
Neutron
Electron
18
What technology did JJ Thompson create?
cathode ray tube
atomic model
alpha particle emitter
gold foil experiment
19
It is the smallest particle of an element
electron
proton
neutron
atom
20
Leptons are found in the nucleus of an atom.
False
True
21
There are 92 elements found naturally in the universe.
False
True
22
T or F: Some atoms are large enough to see with your eyes.
False
# of neutrons
# of protons
True
23
What 2 subatomic particles are in the nucleus?
atomic mass unit
electron
neutron
proton
24
How did Rutherford discover the proton?
Cathode ray tube experiment
Plum pudding model
Gold foil experiment
Planetary model
25
Which is an example of a chemical change?
Digesting food you ate for lunch
Making a turkey and cheese sandwich
Slicing tomatoes
26
What evidence would you see that would show that a burning candle is undergoing a physical change?
Wax melting
Flames glow red and orange
Black smoke is given off
27
No particle is smaller than an atom.
True
False
28
What was JJ Thompson credited with discovering?
Modern atomic theory
atomic model
the electron
the nucleus
29
Atoms are about the size of a drop of water.
False
True
30
Almost all elements and substances can exist as a solid, liquid, or a gas.
False
True
31
Define atomic number
The number of protons plus neutrons
Negatively charged subatomic particle
Center of an atom
The number of protons for each atom of an element
32
Which scientist’s experiments resulted in the nuclear model of the atom?
Robert Millikan’s oil drop experiments.
Ernest Rutherford’s gold foil experiments.
William Crookes’ experiments passing a current through vacuum tubes.
Johann Hittorf’s experiments with objects in vacuum tubes.
33
What scientist is best known for his "Plum Pudding" model of the atom?
Democritus
John Dalton
Ernest Rutherford
JJ Thomson
34
You are asked to chemically change a piece of paper. What would you do?
Light it on fire
Crumple it into a ball
Make a paper airplane out of it
35
How do you find the number of neutrons?
protons + neutrons
mass number - atomic number
atomic number - electrons
protons + electrons
36
What is the number on bottom?
mass number
# of neutrons
weight
atomic number
37
Matter can change its form but it cannot be destroyed.
False
True
38
Where are electrons located?
inside the nucleus
inside protons
outside the nucleus
inside neutrons
39
What are the 3 categories of elements on the periodic table?
protons, neutrons, electrons
1,2,3
metals, metalloids, and nonmetals
atoms, elements, metals
40
How do we calculate the mass number?
protons + electrons
protons + neutrons
the number of protons
the same as atomic number
41
It is the smallest particle of an element
Proton
Neutron
Electron
Atom
42
What was Bohr credited with discovering?
the electron
wave equation
nucleus
atomic model
43
The central region of an atom where its neutrons and protons are is it’s
Electron cloud
Nucleus
Center
Core
44
What was Dalton credited with discovering?
Modern atomic theory
the electron
nucleus
1st atomic theory
45
Deposition, changing from a gas to a liquid, is an example of a:
Chemical change
Physical change
Both
46
Elements on the periodic table are listed in order of increasing ______ number
mass
neutron
amu
atomic
47
Electrical charges that are the same attract each other.
False
True
48
How many theories did John Dalton have?
3
7
5
4
49
What subatomic particle determines the element?(select all)
electron
neutron
proton
nucleus
50
Define orbital
Center of an atom
Negatively charged subatomic particle
The number of protons plus neutrons
region of space around the nucleus where an electron is likely to be found
