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Question
1
2
out
of
2
points
Which
of
the
following
diagrams
of
an
atom
best
represents
the
scale
of
the
nucleus
and
electrons?
nucleus
electron?
nucleus
electrons
nucleus
electrons
nucléus
electrons
a.
b.
a
d.
e.
Selected
Answer:
a
Question
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0
out
of
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OK
_____ have a mass of approximately 1 amu. ←
Review Test Submission: Exam 1 – 201920 Spring 2019 CHEM... https://learn.liberty.edu/webapps/assessment/review/review.jsp?attempt_...
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protons
_____ have a zero electric charge.
neutrons
Atoms of which element should have the largest size?
calcium
Reference: Ref 1-14
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Reference: Ref 1-12
Reference: Ref 1-12
manganese
Isotope Natural abundance
A90 Zr 52%
B91 Zr 11%
C92 Zr 17%
D94 Zr 17%
E96 Zr 3%
Reference: Ref 1-10
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Reference: Ref 1-11
Reference: Ref 1-11
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Reference: Ref 1-11
Select the choice in which atomic number, mass number, number of neutrons, and number of protons
listed is correct for phosphorous-32.
Atomic number Mass
number Number of neutrons Number of protons
Atomic number Mass number Number of neutrons Number of protons
A 15 32 32 15
B 15 32 17 15
C 17 15 15 17
D 17 32 32 17
E 16 32 16 16
Review Test Submission: Exam 1 – 201920 Spring 2019 CHEM... https://learn.liberty.edu/webapps/assessment/review/review.jsp?attempt_...
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Option B
Measurements taken with ruler A and ruler B (below) differ slightly. In what way do the measurements
differ?
A measurement taken with ruler A has one more significant digit than ruler B.
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A child's height is 36.2 inches. What is his height in centimeters? (Use proper significant figures and rules
of rounding!)
91.9 cm
Which of the following equations is set up to convert 312 mg to kilograms?
μ
Reference: Ref 2-3
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Reference: Ref 2-4
Reference: Ref 2-3
Reference: Ref 2-7
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Reference: Ref 2-6
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Reference: Ref 2-8
Reference: Ref 2-8
Reference: Ref 2-7
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Reference: Ref 2-11
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Reference: Ref 3-3
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Reference: Ref 3-12
Reference: Ref 3-9
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Reference: Ref 3-8
Reference: Ref 3-10
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