Chem 5

10 Questions | Total Attempts: 84

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Chemistry Quizzes & Trivia

Intro Chemistry - Chapter 5. Practice Test.


Questions and Answers
  • 1. 
    What is the term for the weighted average mass of all the naturally occurring isotopes of an element?
    • A. 

      Atomic notation

    • B. 

      Atomic number

    • C. 

      Atomic mass

    • D. 

      Mass number

    • E. 

      None of the above

  • 2. 
    What is the term for the region of very high density in the center of the atom?
    • A. 

      A) atomic center

    • B. 

      B) atomic core

    • C. 

      C) atomic kernel

    • D. 

      D) atomic nucleus

    • E. 

      E) none of the above

  • 3. 
    What is the term for the value that indicates the number of protons for an atom of a given element?
    • A. 

      A) atomic notation

    • B. 

      B) atomic number

    • C. 

      C) atomic mass

    • D. 

      D) mass number

    • E. 

      E) none of the above

  • 4. 
    What is the term for the atomic model that describes electrons circling the nucleus in an orbit of specific energy?
    • A. 

      A) Bohr atom

    • B. 

      B) Rutherford atom

    • C. 

      C) Thomson atom

    • D. 

      D) quantum mechanical atom

    • E. 

      E) none of the above

  • 5. 
    What is the negatively charged subatomic particle having a negligible mass?
    • A. 

      A) electron

    • B. 

      B) neutron

    • C. 

      C) proton

    • D. 

      D) quark

    • E. 

      E) none of the above

  • 6. 
    What is the term for the shorthand description of the arrangement of electrons by sublevels according to increasing energy?
    • A. 

      A) atomic notation

    • B. 

      B) atomic number

    • C. 

      C) continuous spectrum

    • D. 

      D) electron configuration

    • E. 

      E) none of the above

  • 7. 
    What is the term for two atoms of the same element that differ by the number of neutrons in the nucleus?
    • A. 

      A) atomic mass units

    • B. 

      B) isotopes

    • C. 

      C) nucleons

    • D. 

      D) photons

    • E. 

      E) none of the above

  • 8. 
    What is the term for the value that indicates the total number of protons and neutrons in an atom of a given element?
    • A. 

      Atomic notation

    • B. 

      Atomic number

    • C. 

      Atomic mass

    • D. 

      Mass number

    • E. 

      None of the above

  • 9. 
    What is the neutral subatomic particle having an approximate mass of 1 amu?
    • A. 

      Electron

    • B. 

      Neutron

    • C. 

      Proton

    • D. 

      Quark

    • E. 

      None of the above

  • 10. 
    What is the term for the spatial region about the nucleus of an atom where there is a high probability of finding an electron with a given energy?
    • A. 

      Electron shell

    • B. 

      Electron subshell

    • C. 

      Orbital

    • D. 

      Quantum level

    • E. 

      None of the above