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33 Cards in this Set
- Front
- Back
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H
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hydrogen
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Zn
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zinc
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He
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helium
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Br
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bromine
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B
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boron
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Ag
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silver
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C
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carbon
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Au
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gold
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N
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nitrogen
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Hg
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mercury
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O
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oxygen
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Pb
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lead
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f
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flourine
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I
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iodine
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Ne
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neon
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Na
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Sodium
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Mg
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magnesium
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Al
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aluminum
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Si
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silicon
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S
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sulfur
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Cl
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chlorine
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P
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phosphorus
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K
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potassium
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Sn
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tin
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Cu
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copper
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Ca
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calcium
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Fe
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Iron
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-natural philosopher
-proclaimed that matter was composed of tiny particles that formed the mass of the sustances |
Democitus
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-english chemist
-atomic theory, 5 main points |
Dalton
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1. elements consisted of tiny particles called atoms
2. atoms of an element are identical 3. atoms of different elements are different from eachother 4. elements combine to form compounds 5. atoms are not created nor destroyed during a chemical reaction, atoms are just rearragned |
Dalton's atomic theory
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-professor of physics
-discovered electrons and subatomic particles -plum pudding model |
Thompson
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-nuclear physicist
-planetary model of atom -gold foil experiment to show atoms are mostly empty space |
Rutherford
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-danish physicist
-electrons orbited nucleus at specific energy levels |
Bohr
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