Introduction To The Atom

10 Questions | Total Attempts: 47

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Introduction To The Atom


Questions and Answers
  • 1. 
    In the original Greek, the word "atom" means
    • A. 

      Uncuttable

    • B. 

      Rotational

    • C. 

      Systematic

    • D. 

      Origin

  • 2. 
    The positively-charged subatomic particle is a
    • A. 

      Neutron

    • B. 

      Graviton

    • C. 

      Proton

    • D. 

      Electron

  • 3. 
    An electron is a
    • A. 

      Negatively-charged subatomic particle

    • B. 

      Semiconductor electrical substrate

    • C. 

      Packet of light energy emitted by atoms

    • D. 

      Electroweak interaction with material forces

  • 4. 
    You can not know both an electron's ___________ and ____________ at any point in time.
    • A. 

      Size, shape

    • B. 

      Location, momentum

    • C. 

      Spin, vibration

    • D. 

      Charge, velocity

  • 5. 
    What is an orbital?
    • A. 

      Quantum mechanic shifts an electron makes when an atom absorbs energy

    • B. 

      Chemical reaction between an electron and a proton

    • C. 

      Spinning path the electron particle makes around the nucleus

    • D. 

      Mathematical probability function of where an electron is likely to be

  • 6. 
    One atomic mass unit equals
    • A. 

      The mass of an atom in a vacuum at zero degrees kelvin

    • B. 

      The mass of 1 proton or 1 neutron

    • C. 

      A unit to compare relative atomic masses

    • D. 

      The weight of an atom in a vacuum

  • 7. 
    What is the negatively-charged subatomic particle?
    • A. 

      Neutron

    • B. 

      Graviton

    • C. 

      Proton

    • D. 

      Electron

  • 8. 
    What is the uncharged subatomic particle?
    • A. 

      Neutron

    • B. 

      Graviton

    • C. 

      Proton

    • D. 

      Electron

  • 9. 
    An electron gains potential energy as it
    • A. 

      Accumulates charge in response to the protons in the nucleus

    • B. 

      Moves away from the nucleus

    • C. 

      Interacts with gravitational fields

    • D. 

      Increases its radioactive decay

  • 10. 
    I know what element an atom is by the
    • A. 

      Number of protons in the nucleus

    • B. 

      Atomic radius, in angstroms

    • C. 

      Number of neutrons in the nucleus

    • D. 

      String vibrations the atom emits when excited

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