Chem Ch 3 ppt-Evolution of Atomic Theory - Evolution of...

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Evolution ofAtomicTheoryChemistry Chapter 3
Dalton’s Atomic TheoryDaltonBritishSchool teacherEarly 1800’sBased on “laws” formulated inthe late 1700’s
2 Important Laws…. #1Law of Conservation of MatterWhen a chemical reaction takes place,matter is neither created nor destroyed.Developed by Antoine Lavoisier- 1775After a nail rusts its weight isThe same?Greater?Smaller?
Lavoisier and his brideDisproved“phlogiston”theoryNamed OxygenDeveloped theLaw ofConservation ofMass
Jean-Paul Marat“Let us tax the richto subsidize thepoor.”Very influential leaderduring FrenchRevolutionPut out the “hit list.”
Charlotte CordayWanted to bringpeace back to FranceStabbed Marat throughthe heart while he wasin the bathtub.
Marat Dead in his BathtubBy David
2 Important Laws…. #2Law of Constant CompositionAlso known as “Law of DefiniteProportions”Multiple samples of any pure chemicalcompound always contain the samepercent by mass of each element makingup the compound.The pure water you get in Egypt is H20,just like the water in Paris and New York.
Dalton’s Atomic Theory1. All matter is made up of atoms(small, indivisible, indestructible,fundamental particles).

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Term
Fall
Professor
Ms. Emerson
Tags
Chemistry, Psychology, Atom, Mass, Neutron, Chemical element

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