The Atom
Quiz by edel kinsella
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13 questions
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- Q1Who proposed the 'plum pudding' model of an atom?James ChadwickJohn DaltonJJ ThomsonErnest Rutherford30s
- Q2What experiment did Robert Millikan conduct to measure the charge of an electron?gold foil experimentoil drop experimentplum pudding experimentcathode ray experiment30s
- Q3What did Rutherford conclude about the atom's structure?Most of the atom is concentrated in a dense coreAtoms contain only electronsAtoms are indivisibleAtoms are solid throughout30s
- Q4What type of rays did William Crookes discover?cathode raysgamma raysbeta raysalpha rays30s
- Q5What did Chadwick discover?neutronselectronsprotonscathode rays30s
- Q6What was John Dalton's main contribution to atomic theory?Atoms can be created or destroyedAtoms do not existMatter is composed of indivisible particlesAtoms are all identical30s
- Q7Which particle did JJ Thomson identify as negatively charged?alpha particleneutronelectronproton30s
- Q8What did most of the atom consist of according to Rutherford's findings?empty spaceliquidsolid materialdense matter30s
- Q9What did Rutherford use to bombard the gold foil?neutronsalpha particlesgamma raysbeta particles30s
- Q10What type of screen did Rutherford use to detect alpha particles?Geiger counterfluorescent screenphotoelectric cellcathode ray tube30s
- Q11What was the primary observation about alpha particles after striking the gold foil?Some explodedAll were deflectedMost alpha particles passed straight through without being deflectedAll turned into beta particles30s
- Q12What conclusion did Rutherford draw about the nucleus of an atom?Atoms have no nucleusThe nucleus is hollowMost of the atom is concentrated in a dense core (i.e. the nucleus)Atoms are solid throughout30s
- Q13Why was Rutherford's experiment considered groundbreaking?It discovered electronsIt confirmed atoms are indivisibleIt changed the understanding of atomic structureIt proved atoms exist30s