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33 Cards in this Set

  • Front
  • Back
H
hydrogen
Zn
zinc
He
helium
Br
bromine
B
boron
Ag
silver
C
carbon
Au
gold
N
nitrogen
Hg
mercury
O
oxygen
Pb
lead
f
flourine
I
iodine
Ne
neon
Na
Sodium
Mg
magnesium
Al
aluminum
Si
silicon
S
sulfur
Cl
chlorine
P
phosphorus
K
potassium
Sn
tin
Cu
copper
Ca
calcium
Fe
Iron
-natural philosopher
-proclaimed that matter was composed of tiny particles that formed the mass of the sustances
Democitus
-english chemist
-atomic theory, 5 main points
Dalton
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
-professor of physics
-discovered electrons and subatomic particles
-plum pudding model
Thompson
-nuclear physicist
-planetary model of atom
-gold foil experiment to show atoms are mostly empty space
Rutherford
-danish physicist
-electrons orbited nucleus at specific energy levels
Bohr