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Early Early HistoryHistory
ScientistScientistss
AtomAtom Periodic Periodic TableTable TermsTerms LawsLaws
200200 200200 200200 200200 200200 200200
400400 400400 400400 400400 400400 400400
600600 600600 600600 600600 600600 600600
800800 800800 800800 800800 800800 800800
10001000 10001000 10001000 10001000 10001000
Final
AnswersAnswers
Early Early HistoryHistory
ScientistScientistss
AtomAtom Periodic Periodic TableTable TermsTerms Laws/Laws/
MiscMisc
DemocratesDemocrates LavoisierLavoisier Proton, NeutronProton, Neutron MetalsMetals CorpusclesCorpusclesLaw of Law of
Conservation of Conservation of MassMass
Aristotle & PlatoAristotle & Plato JJ ThomsonJJ Thomson ElectronElectron Non-metalsNon-metals Heterogenous Heterogenous MixtureMixture
Law of Definite Law of Definite ProportionsProportions
Air, Earth, Fire, Air, Earth, Fire, WaterWater DaltonDalton IsotopeIsotope MetalloidsMetalloids Cathode RaysCathode Rays Law of Multiple Law of Multiple
ProportionsProportions
AlchemyAlchemy RutherfordRutherford Atoms are Atoms are indivisibleindivisible Rb (Rubidium)Rb (Rubidium) Alpha particlesAlpha particles GasesGases
HyleHyle MillikanMillikan
All atoms of the All atoms of the same element same element have the same have the same
massmass
P (Phosphorous)P (Phosphorous) Canal raysCanal rays
Final Jeopardy Answer-
Early HistoryEarly History200200
Ancient Greek scientist who Ancient Greek scientist who thought matter was made of thought matter was made of indivisible units (“atoma”)indivisible units (“atoma”)
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Early History Early History 400400
Ancient Greek philosophers who Ancient Greek philosophers who called atoms “hyles”called atoms “hyles”
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Early History Early History 600600
These were the “Classic Greek These were the “Classic Greek elements”elements”
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Early History Early History 800800
Mystical pseudoscience; searched Mystical pseudoscience; searched for philosopher’s stonefor philosopher’s stone
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Early History Early History 10001000
Aristotle’s term for an indivisible Aristotle’s term for an indivisible unit of matterunit of matter
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ScientistsScientists200200
Contribution: Law of Conservation Contribution: Law of Conservation of Massof Mass
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Scientists Scientists 400400
Using a CRT, discovered corpusclesUsing a CRT, discovered corpuscles
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Scientists Scientists 800800
Refuted Thomson’s Plum Pudding Refuted Thomson’s Plum Pudding Model Model
(Atoms are mainly empty space;(Atoms are mainly empty space;
Nucleus is massive and positively Nucleus is massive and positively charged)charged)
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Scientists Scientists 10001000
Discovered the charge of an Discovered the charge of an electronelectron
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AtomAtom200200
Sum of these subatomic particles = Sum of these subatomic particles = atomic mass of an atomatomic mass of an atom
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AtomAtom400400
Mass is 1/1800 of a proton; Mass is 1/1800 of a proton; negatively charged particlenegatively charged particle
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Atom Atom 600600
Atoms with the same atomic Atoms with the same atomic number but different atomic mass number but different atomic mass
numbersnumbers
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AtomAtom800800
This postulate of Dalton’s was This postulate of Dalton’s was disproved with the discovery of disproved with the discovery of
subatomic particlessubatomic particles
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AtomAtom10001000
This postulate of Dalton’s was This postulate of Dalton’s was disproved by the discovery of disproved by the discovery of
isotopesisotopes
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Periodic TablePeriodic Table200200
Properties include solids, heat Properties include solids, heat conductors, ductile, high melting conductors, ductile, high melting point, malleable and have luster point, malleable and have luster
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Periodic Table Periodic Table 400400
Properties include dull (lack of Properties include dull (lack of luster), nonconductors, low luster), nonconductors, low
melting pointmelting point
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Periodic Table Periodic Table 600600
Except for Aluminum, Except for Aluminum, found on both sides found on both sides
of staircaseof staircase
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Periodic Table Periodic Table 800800
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ElementElement SymboSymboll
Atomic Atomic MassMass p+p+ nn°° e-e-
?? ?? 8585 ?? ?? 3737
Periodic TablePeriodic Table 10001000
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ElementElement SymboSymboll
Atomic Atomic MassMass
p+p+ nn°° e-e-
?? PP ?? ?? 1616 ??
TermsTerms200200
Thomson’s obsolete term for Thomson’s obsolete term for electronselectrons
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TermsTerms400400
used to describe substances in used to describe substances in which you can see more than one which you can see more than one
color or type of matter; color or type of matter; composition is not uniform composition is not uniform
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TermsTerms600600
Thomson’s beam was composed of Thomson’s beam was composed of electronselectrons
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TermsTerms800800
Radioactive particles in Radioactive particles in Rutherford’s Gold Foil ExperimentRutherford’s Gold Foil Experiment
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TermsTerms10001000
Eugen Goldstein observed these by Eugen Goldstein observed these by the cathode end of the CRTthe cathode end of the CRT
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LawsLaws400400
Chemical compounds always Chemical compounds always contain the same ratio of contain the same ratio of
elements by masselements by mass
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LawsLaws600600
When elements combine, they do When elements combine, they do so in a ratio of small whole so in a ratio of small whole
numbersnumbers
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LawsLaws800800
This phase of matter has a very This phase of matter has a very high kinetic energy (energy of high kinetic energy (energy of
motion)motion)
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