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Chapter 4 Review
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Chapter 4 Review
“Atomic Structure”
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atoms of the same element have
the same _____.
Know Dalton’s Atomic Theory.
An element has an atomic number
of 76. What is the number of
protons and electrons in a neutral
atom of this element?
How is the number of neutrons in
the nucleus of an atom calculated?
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Chapter 4 Review
Chapter 4 Review
All
atoms are neutral, with the
number of protons equaling the ___.
Isotopes of the same element have
different _____.
Using the periodic table, determine
the number of neutrons in 16 O.
What does the number 84 represent
in the name krypton-84?
What
is the correct complete symbol
for an atom of tritium?
Know who discovered the neutron,
and in what year.
Dalton said that atoms were
indivisible and atoms of the same
element were identical. Have any
changes been made to this?
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Chapter 4 Review
Chapter 4 Review
The
mass number of an element is
equal to _____.
The sum of the protons and
neutrons in an atom equals the __.
What is the purpose of comparing
the number of atoms of copper in a
coin the size of a penny with the
number of people on the earth?
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The
atomic number of an element is
the total number of ____.
How do the isotopes of hydrogen-1
and hydrogen-2 differ?
What hypothesis led to the
discovery of the proton?
The element Indium has __ protons
and ___ electrons.
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Chapter 4 Review
Chapter 4 Review
Why
did J. J. Thomson reason that
electrons must be a part of the
atoms of all elements?
Isotopes of the same element have
different ____.
Know characteristics regarding the
nucleus of an atom.
Are these the same element?
38 M
and 39 M
Describe
the model of the atom as a
result of Rutheford’s discovery of
the nucleus.
The smallest particle of an element
that retains the properties of that
element is a(n) ____.
Know the complete symbol for an
2
element, and what it means: 01 X
0
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Chapter 4 Review
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Chapter 4 Review
What
How
is the relative mass of an
electron?
The particles that are found in the
nucleus of an atom are ____.
Know the ideas from Democritus.
Who conducted experiments to
determine the quantity of charge
carried by an electron?
many protons, electrons, and
neutrons does an atom with atomic
number 50 and mass number 125
contain?
Who was the man who lived from
460 B.C. – 370 B.C., and was among
the first to suggest the idea of
atoms?
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Chapter 4 Review
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Chapter 4 Review
Know
the characteristics of subatomic
particles.
A fictitious element X has 10.0 % of
the isotope with mass 55, 20.0 % of
the isotope with mass 56, and 70.0 %
of the isotope with mass 57. Estimate
the atomic mass of element X.
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Element
Z has two isotopes: one
has mass number of 19.0 is 55.0 %
abundant, and the isotope with
mass number 21.0 is 45.0 %
abundant. What is the average
atomic mass for element Z?
How many protons are present in an
atom of Beryllium-9?
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Chapter 4 Review
Chapter 4 Review
Calculate
the number of neutrons in
Lead-210.
Determine the number of electrons
in an atom of Iridium.
About how many more times
massive is a proton than electron?
How many neutrons are present in
an isotope of uranium-235?
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Chapter 4 Review
What
is the mass number for an
oxygen atom that has 10 neutrons
in its nucleus?
How many electrons are in an atom
of gold?
What is the total number of
subatomic particles in the nucleus of
an atom of bismuth-209?
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What
is the atomic number for an
element with 41 neutrons and a
mass number of 80?
Use the periodic table to determine
the number of protons in barium.
How many protons are present in
the nuclei of the three known
isotopes of hydrogen?
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