Flashcards in Scientists Quiz Deck (16):
he is British
"all matter is made up of atoms"
"all atoms of an element are exactly alike"
"matter is neither created nor destroyed"
he realized + & - charges in atoms
believed whole atom was solid with positives
"-" = "electrons"
(((Plum Pudding Model)))
he propelled alpha particles through gold foil
-some went backwards
-some hit the nucleus & bounced straight back
"atom = empty space"
he was german
"in an element, light is given off or absorbed as packets of energy"
these packets are quantized, come in different sizes
Max Plank & Albert Einstein = ....
he said every electron has a fixed orbit
"every electron has a location"
"every orbit has a # of electrons"
"farther from the nucleus, the more energy it takes to stay in the orbit"
he said that we can know the location and momentum of the electron, but not at the SAME TIME
he published "Heisenberg Uncertainty Principle"
They both said that we don't know exactly the location of an electron
you can know the probability of the area where it should be
Schrodinger & Bohr
what does Democritus model of atom look like...
just a round sphere
what is Dalton's model of the atom?
just a round spherical
what is Thomson model of the atom?
sphere w/ big plus sign in middle & electrons everywhere
what is Rutherfords model of the atom?
circle with other spheres in it w/ electrons on the lines of the spheres
what is Bohr's model of the atom?
swirly line into a circle, with electrons on it
what is Heisenbergs model of the atom?
spheres in each other, w/ electrons on the lines, and nucleus in middle
what is Schrodinger and Bohr's model of the atom?
three lines from nucleus (level 1,2,3)
electrons on each energy level
protons in nucleus