Unit 3 Target 1 & 5: Atoms, Ions, And Isotopes Quiz

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Unit 3 Target 1 & 5: Atoms, Ions, And Isotopes Quiz - Quiz


Questions and Answers
  • 1. 
    What type of ion forms when an atom gains electrons?
    • A. 

      Neutral

    • B. 

      Positive

    • C. 

      Negative

    • D. 

      Possibly positive or negative

  • 2. 
    What type of ion forms when an atom loses electrons?
    • A. 

      Positive

    • B. 

      Possibly positive or negative

    • C. 

      Negative

    • D. 

      Neutral

  • 3. 
    Isotopes are atoms of the same element with the same number of protons and
    • A. 

      A different number of neutrons.

    • B. 

      A different number of electrons.

    • C. 

      A different number of molecules.

    • D. 

      The same number of neutrons.

  • 4. 
    Carbon-14 is a radioactive isotope used to determine the age of ancient objects composed of organic matter.  Carbon-12 and carbon-13 are other isotopes of carbon.  The number of what subatomic particles varies among these carbon isotopes?
    • A. 

      Electrons

    • B. 

      Neutrons

    • C. 

      Photons

    • D. 

      Protons

  • 5. 
    Lead (Pb-208) is the heaviest stable isotope known.  It has an atomic number of 82.  How many neutrons does Pb-208 have?
    • A. 

      82

    • B. 

      126

    • C. 

      164

    • D. 

      208

  • 6. 
    When a small neutral molecule becomes an ion, in which way is it better able to function?
    • A. 

      Dissolving in blood plasma

    • B. 

      Sharing electrons with other ions

    • C. 

      Combining with ions of similar charges

    • D. 

      Passing through a cell's plasma membrane.

  • 7. 
    The particular type of element is determined by the number of
    • A. 

      Electrons

    • B. 

      Protons

    • C. 

      Neutrons

    • D. 

      Valence electrons

    • E. 

      Energy levels

  • 8. 
    An atom has six protons and eight neutrons.  Its atomic mass is ________________ atomic mass units.
    • A. 

      Two

    • B. 

      Four

    • C. 

      Six

    • D. 

      Eight

    • E. 

      Fourteen

  • 9. 
    Isotopes differ from each other with respect to the number of:
    • A. 

      Protons only.

    • B. 

      Neutrons only.

    • C. 

      Electrons only.

    • D. 

      Both protons and electrons.

    • E. 

      Both neutrons and protons.

  • 10. 
    An atom becomes a cation if:
    • A. 

      It gains one or more electron.

    • B. 

      It loses one or more electron.

    • C. 

      It shares electrons.

    • D. 

      One or more of its electrons changes energy levels.

    • E. 

      It emits radiation.

  • 11. 
    The difference between an electrically neutral atom and an ion is that:
    • A. 

      An ion has an unequal number of protons and electrons, while an atom has an equal number

    • B. 

      An ion has an equal number of protons and electrons, while an atom has an unequal number

    • C. 

      An atom has an unequal number of protons and neutrons, while an ion has an equal number

    • D. 

      An atom has its electrons in orbitals, while an ion has its electrons in its nucleus

    • E. 

      An atom must have an equal number of neutrons and electrons, while an ion does not.

  • 12. 
    What is the maximum number of covalent bonds that can form between a single carbon atom and 1 or more hydrogen atoms?
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

  • 13. 
    Breaking which type of bond would require the most energy?
    • A. 

      Covalent

    • B. 

      Electrostatic

    • C. 

      Hydrogen

    • D. 

      Intermolecular

  • 14. 
    In glycerol (C3H8O3), there is a hydroxyl group (OH) bound to each of the 3 carbon atoms. The bond between the oxygen atom of a hydroxyl group (-OH) and a carbon atom in glycerol is best classified as what type of bond?
    • A. 

      Covalent

    • B. 

      Hydrogen

    • C. 

      Intermolecular

    • D. 

      Ionic

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