Democritus and Aristotle
what 4 elements make up everything
fire water earth air
tiny particles that make up elements
atoms
what did thomson discovered
electrons
what was the element that was named after him?
rutherfordium
who proposed that electrons revolve in stable orbits around nucleous
neils bohr
what did Democritus believe in
atoms
daltons major contribution to chemistry
atomic theory
what was model called
plum- pudding
true or false: he called the emission of a subatomic particle a neutron
false proton
who believed that electrons location depends on how much energy it has
shrodingen and heisenburg
what shape did he believe it was
sphere
what award did Dalton receive in 1826
royal medal
how did thomson discovered electrons
cathode ray
where did he theoride that atoms have their charge concetracted
nucleus
who conducted oil drop experiment
robert millikean
what does atomos mean
can not be cut
the process would not be possible without the effects of dalton
What is the splitting of the atom?
14
what kind of autificially involved reaction did he perform
nucleour
who won noble prize for investigation on structure of atoms
bohr
What similarity was in Aristotle and Democritus theories?
Both believed that all matter was composed of something smaller.
John Dalton was a scientist of 3 sciences
What are chemist, meteorologist, and physicist
what was the difference between thomson and dalton?
thomson showed negative and positive
what 2 types of vadiciation did he discover
alpha and beta particles
the word atom comes from what greek term
atomos