Transcript Biochemistry-Macromolecules

JEOPARDY
The Atom
History
The Atom
Isotopes
Nuclear
Chemistry
I’m feeling
lucky
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200
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300
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500
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500
History
100
The first to describe matter as being
composed of individual matter
A: Who is Democritus ?
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History
200
He determined the charge-to-mass ratio for
the electron from the behavior of a cathode
ray tube with electric and magnetic fields.
A: Who is J.J. Thomson ?
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History
300
Published his atomic theory in 1808.
A: Who is John Dalton?
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History
400
The first to publish all the experimental
details of his work, including
experiments that did not work.
A: Who is Robert Boyle?
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History
500
He established the Law of Conservation
of Mass.
A: Who is Antoine Lavoisier?
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The Atom
100
Very small is size, but has a very
large mass
A: What is a nucleus?
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The Atom
200
They take up lots of space and have
very little mass.
A: What are electrons?
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The Atom
300
When rounded to the nearest whole
number, the atomic mass becomes
this.
A: What is the mass number ?
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The Atom
400
The number of protons, electrons, and
neutrons in this lithium atom
5 7Li2 +1
3
A: What are 3 protons, 4 neutrons
and 2 electrons ?
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The Atom
500
The number 5 represents this.
5 7Li2 +1
3
A:What is the number of
lithium atoms?
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Isotopes
100
The different between isotopes of
a particular element.
A: What is the number of
neutrons or mass?
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Isotopes
200
The average atomic mass
represents this.
A: What is a weighted average (for
all of the element’s isotopes) ?
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Isotopes
300
The reason all isotopes of an
element behave nearly identically.
A: What is the number of
neutrons does not affect its
electron or chemical behavior?
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Isotopes
400
Based on this data, the weighted atomic
mass of iron.
isotope
54Fe
56Fe
57Fe
58Fe
isotopic molar naturally occurring
mass (g/mole) abundance
53.940
5.82 %
55.935
91.66 %
56.935
2.19 %
57.933
0.33 %
A: What is 55.85 g/mole?
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Isotopes
500
The % abundance of chlorine-35
and chlorine-37 when the average
atomic mass = 35.45.
A: What is the 77.5%
22.5% (37C) ?
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35
( C)
and
Nuclear Chemistry
100
Produced in nuclear reactions, but do
not change the nucleus by themselves.
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Nuclear Chemistry
200
The spontaneous decomposition of a
nucleus to form another nucleus and
produce one or more particles.
A: What is radioactivity?
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Nuclear Chemistry
300
The nuclear equation for the beta decay
of 120
Cs.
55
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Nuclear Chemistry
400
If the number of protons in the nucleus
exceeds this, then the nuclide is
radioactive
A: What is 83 ?
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Nuclear Chemistry
500
Protactinium-229 goes through two
alpha decays and releases three
gamma rays.
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100
The mass of a gamma particle.
A: What is zero?
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200
An evacuated glass through
which a stream of electrons is
passed
A: What is a cathode ray tube?
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300
The balloonist who determined
that gasses combine in definite
ratios by volume.
A: Who is Joseph Gay-Lussac?
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400
The Greek natural philosophers
were the first to try to explain why
chemical changes occur using this
four element system.
A: What are earth, air, fire and
water?
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500
Different forms of the same
element.
A: What is an allotrope?
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