IScience - Atomic Theorists Quiz Flashcards
___ discovered the neutron.
Chadwick
___ used the Gold Foil Experiment.
Rutherford
___ stated that electrons travel in a circular motion in energy levels.
Bohr
___ stated that all atoms are small solid objects that cannot be divided, created, or destroyed.
Democritus
___ made careful observations and measurements and developed a new atomic theory that included chemical reactions in atoms.
Dalton
___ stated that matter is made of fire, water, air, and earth.
Aristotle
___ called the small solid spheres of matter atomos.
Democritus
___ discovered electrons.
Thomson
___ student discovered protons.
Thomson’s
___ used the Cathode Ray Tube Experiment in his discoveries.
Thomson
___ model looks like symbol on Jimmy Neutron’s shirt.
Rutherford’s
___ stated that as electrons move further from the nucleus, they gain energy.
Bohr
___ theory stated that atoms combine in specific ratios.
Dalton’s
What is today’s modern atomic model named?
Electron Cloud Model