Quiz: Atomic Structure & Atomic Mass Calculations

17 Questions | Total Attempts: 1110

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Quiz: Atomic Structure & Atomic Mass Calculations

Choose or type the answer that best completes each question or prompt.


Questions and Answers
  • 1. 
    The diagram below represents carbon-14. What is the mass number of carbon-14?  
    • A. 

      6

    • B. 

      14

    • C. 

      8

    • D. 

      20

  • 2. 
    The diagram below represents carbon-14. What is the atomic number of carbon-14?
    • A. 

      6

    • B. 

      14

    • C. 

      8

    • D. 

      20

  • 3. 
    The diagram below represents carbon-14. How many neutrons are in an atom of carbon-14?
    • A. 

      6

    • B. 

      14

    • C. 

      8

    • D. 

      20

  • 4. 
    An atom that has 8 protons, 8 neutrons, and 7 electrons would be considered an oxygen ion.
    • A. 

      True

    • B. 

      False

  • 5. 
    An atom with 9 protons, 10 neutrons, and 9 electrons would be considered an isotope of fluorine.
    • A. 

      True

    • B. 

      False

  • 6. 
    An atom that contains an unequal number of protons and electrons is called a(n)
    • A. 

      Atom

    • B. 

      Molecule

    • C. 

      Isotope

    • D. 

      Ion

  • 7. 
    An atom that contains a different number of neutrons than the normally occurring version is called a(n)
    • A. 

      Atom

    • B. 

      Molecule

    • C. 

      Ion

    • D. 

      Isotope

  • 8. 
    Which type of subatomic particle has a positive charge?
    • A. 

      Proton

    • B. 

      Neutron

    • C. 

      Electron

  • 9. 
    Which type of subatomic particle has a negative charge?
    • A. 

      Proton

    • B. 

      Neutron

    • C. 

      Electron

  • 10. 
    Which type of subatomic particle has no charge, meaning it is neutral?
    • A. 

      Proton

    • B. 

      Neutron

    • C. 

      Electron

  • 11. 
    In the diagram below, what color represents the electrons?
    • A. 

      Blue

    • B. 

      Yellow

    • C. 

      Red

    • D. 

      They are not represented.

  • 12. 
    Which subatomic particle determines the identity of an atom? In other words, all atoms of one element will always have the same number of these.
    • A. 

      Proton

    • B. 

      Neutron

    • C. 

      Electron

  • 13. 
    Ga-69 has a mass of 68.926 amu and an abundance of 60.10%. Ga-71 has a mass of 70.925 amu and an abundance of 39.90%. What is the weighted average atomic mass of galium? (Type only a numeric answer. Do not include units.)
  • 14. 
    Cl-35 has a mass of 34.969 amu and a relative abundance of 75.7%. Cl-37 has a mass of 36.965 amu and a relative abundance of 24.3%. What is the weighted average atomic mass of chlorine? (Type only a numeric answer. Do not include units.)
  • 15. 
    Ag-107 has a mass of 106.905 amu and an abundance of 51.84%. Ag-109 has a mass of 108.905 and an abundance of 48.16%. What is the weighted average atomic mass of silver? (Type only a numeric answer. Do not include units.)
  • 16. 
    Which particle(s) are found in the nucleus?
    • A. 

      Proton

    • B. 

      Neutron

    • C. 

      Electron

  • 17. 
    Which particle(s) are located outside the nucleus?
    • A. 

      Proton

    • B. 

      Neutron

    • C. 

      Electron