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The Atom LC

Quiz by edel kinsella

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10 questions
Show answers
  • Q1
    What is an energy level in an atom?
    The number of protons in an atom
    A fixed energy value an electron may have
    The speed of light in a vacuum
    The total mass of an atom
    30s
  • Q2
    What does Heisenberg’s Uncertainty Principle state?
    Electrons can be predicted with certainty
    You cannot measure position and velocity of an electron simultaneously
    Electrons only exist when observed
    An electron can exist in two places at once
    30s
  • Q3
    What is an orbital in the context of atomic structure?
    An energy level of an electron
    The path of an electron around the nucleus
    A region of space where there's a high probability of finding an electron
    A fixed position of an electron
    30s
  • Q4
    What does Dalton's Atomic Theory state about atoms?
    Atoms can be split into smaller parts
    Atoms cannot be created or destroyed
    Atoms are larger than molecules
    Atoms do not exist in nature
    30s
  • Q5
    Who discovered the electron?
    William Crookes
    Robert Millikan
    Ernest Rutherford
    JJ Thomson
    30s
  • Q6
    What did JJ Thomson determine about electrons?
    They are positive particles
    They are negative particles
    They have no charge
    They are neutral particles
    30s
  • Q7
    Which experiment did Robert Millikan perform?
    Alpha particle experiment
    Oil drop experiment
    Gold foil experiment
    Cathode ray experiment
    30s
  • Q8
    What does the Plum Pudding Model propose?
    Electrons are inside protons
    Electrons orbit a nucleus
    A solid positive sphere with embedded electrons
    Atoms are indivisible
    30s
  • Q9
    Who discovered the nucleus of the atom?
    JJ Thomson
    William Crookes
    Robert Millikan
    Ernest Rutherford
    30s
  • Q10
    Which particle was discovered by Chadwick?
    Proton
    Electron
    Alpha particle
    Neutron
    30s

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