Historical View of Atom Flashcards
Who created the solid sphere model (1803) that showed that atoms contained particles?
Dalton
Who had the plum pudding model (1904) that showed that electrons were in a cloud with positive charge?
Thomson
Who thought atoms could be separated?
Dalton
Who had an electrical discharges in a cathode tube that produced a ray?
Thomson
Who found charge to mass ratio?
Thomson
Who created the nuclear model (1911) ?
Rutherford
Who shot alpha particles at gold foil and some deflected w/ angles which showed empty atom?
Rutherford
Who found that the particle charge was in the nucleus?
Thomson
Who used charged oil drops in their experiment to find mass of electron (1909) ?
Millikan
What did Millikan use to find charge of an electron?
Charge to mass ratio
Who created the planetary model (1913) ? (Circular orbit w/ electrons in outer shell)
Bohr
Who created the quantum model for hydrogen?
Bohr
Who found that atoms moved around nucleus in orbits w/ fixed sizes and energies?
Bohr
Bohr find emission spectra for what element?
Those with 1 electron, hydrogen
Who created the quantum model (1926) that is currently accepted?
Schrödinger
