Lesson 12 Problem Set 6

Atomic and Nuclear Physics

Directions

Several of the following problems are missing some of the given variable information (labeled in red with "ABI" or assigned by instructor). Your instructor will provide the values through the Message Center, in the "From Your Instructor" section of the lesson, or in an Announcement on the course Home Page. Use the values provided by your instructor to answer each question. Show all work with units in your work. Use appropriate labels and units.

Be sure to type all work, diagrams, explanations, and final answers as it is too difficult to read hand-written work after going through the various systems to get to your instructor. Also, this is good practice as you will have to type the midterm and final exam free response items as well.

1. Explain the difference between an atom, an isotope, and an ion. (Be sure to explain how you would be able to tell which of these particles are present when written.) Provide an example of each. (9 points)

1. Explain the development of the atom, the scientists who participated in its development, and what their research (and/or equipment) entailed. (6 points)

1. The most prominent line in the spectrum of neon is found at 865.438 nm. Other lines are found at 837.761 nm, 878.062 nm, 878.438 nm, and 1885.387 nm.
   1. Which of these lines represents the light with the most energy? (3 points)
   2. What is the frequency of the most prominent line? (7 points)
   3. What is the energy of one photon of this wavelength (of the most prominent line)? (7 points)

1. Write the nuclear equation for the decay of Po-210 if it undergoes two consecutive alpha decays followed by a beta decay followed by another alpha decay. (8 points)