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The Atom
JEOPARDY
HistoryHistory The AtomThe Atom IsotopesIsotopesNuclear Nuclear
ChemistryChemistryI’m feeling I’m feeling
luckylucky
100 100 100 100 100
200 200 200 200 200
300 300 300 300 300
400 400 400 400 400
500 500 500 500 500
History100
The first to describe matter as being composed of individual matter
A: Who is Democritus ?
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History200
A: Who is J.J. Thomson ?
He determined the charge-to-mass ratio for the electron from the behavior of a cathode ray tube with electric and magnetic fields.
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History300
A: Who is John Dalton?
Published his atomic theory in 1808.
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History400
A: Who is Robert Boyle?
The first to publish all the experimental details of his work, including experiments that did not work.
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History500
A: Who is Antoine Lavoisier?
He established the Law of Conservation of Mass.
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The Atom100
A: What is a nucleus?
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Very small is size, but has a very large mass
The Atom 200
A: What are electrons?
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They take up lots of space and have very little mass.
The Atom300
A: What is the mass number ?
When rounded to the nearest whole number, the atomic mass becomes this.
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The Atom400
A: What are 3 protons, 4 neutrons and 2 electrons ?
The number of protons, electrons, and neutrons in this lithium atom
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5 7Li2+1
3
The Atom500
The number 5 represents this.
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A:What is the number of lithium atoms?
5 7Li2+1
3
Isotopes100
A: What is the number of neutrons or mass?
The different between isotopes of a particular element.
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Isotopes200
A: What is a weighted average (for all of the element’s isotopes) ?
The average atomic mass represents this.
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Isotopes300
A: What is the number of neutrons does not affect its electron or chemical behavior?
The reason all isotopes of an element behave nearly identically.
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Isotopes400
A: What is 55.85 g/mole?
Based on this data, the weighted atomic mass of iron.
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isotope isotopic molar mass (g/mole)
naturally occurring abundance
54Fe 53.940 5.82 %56Fe 55.935 91.66 %57Fe 56.935 2.19 %58Fe 57.933 0.33 %
Isotopes500
A: What is the 77.5% (35C) and 22.5% (37C) ?
The % abundance of chlorine-35 and chlorine-37 when the average atomic mass = 35.45.
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Nuclear Chemistry100
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Produced in nuclear reactions, but do not change the nucleus by themselves.
Nuclear Chemistry 200
A: What is radioactivity?
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The spontaneous decomposition of a nucleus to form another nucleus and produce one or more particles.
Nuclear Chemistry300
The nuclear equation for the beta decay of 120Cs.
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55
Nuclear Chemistry400
A: What is 83 ?
If the number of protons in the nucleus exceeds this, then the nuclide is radioactive
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Nuclear Chemistry500
Protactinium-229 goes through two alpha decays and releases three gamma rays.
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I’m feeling lucky100
A: What is zero?
The mass of a gamma particle.
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I’m feeling lucky 200
A: What is a cathode ray tube?
An evacuated glass through which a stream of electrons is passed
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I’m feeling lucky300
A: Who is Joseph Gay-Lussac?
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The balloonist who determined that gasses combine in definite ratios by volume.
I’m feeling lucky400
A: What are earth, air, fire and water?
The Greek natural philosophers were the first to try to explain why chemical changes occur using this four element system.
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I’m feeling lucky 500
A: What is an allotrope?
Different forms of the same element.
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