Which Chapter/Sections are covered?
Chapters 14, the “Fundamentals” were covered on
homework 1 (and ALEKS). I do not plan on any direct
questions from the fundamentals, the exam is based on
content in Chapter 12.
All the material on the exam has
been covered in one way or another on homeworks 2 and
3. Concentrate on the subject matter emphasized in class
and on these homeworks. Come in mentally prepared to
answer at least 25 questions, maybe a few more. Yes,
there will be calculations, but most of the exam will be
theory and concepts. You need to
understand
the theory
and concepts to the level at which we studied it. I don’t
expect you to solve the Schrödinger equation, but I do
think you should understand what it meant towards
modern atomic theory. And, just because you got a
homework question right does not necessarily mean you
really understand the material.
Try explaining the
concepts to someone else to see if you really understand.
•Bring a pencil(s) and nongraphing calculator to the
exam. WE will provide you with an exam copy, an
answer sheet (bubblesheet), and any scratch paper
that you might need.
•You need to memorize the formulas with the green
background.
Energy traveling at the speed of light
Know what electromagnetic radiation is and how we
depict it on the page and conceptually.
Know the basics of the entire electromagnetic spectrum
(Figure 12.3, shown below).
Know the approximate wavelengths for each type of
radiation given (LOOK at that figure). Know also, that
visible light is in the 400700 nm range (that’s blue end
to red end). Other than the two ends, I do not expect you
to know the wavelengths of all the colors of the rainbow
– however, you SHOULD know the ordering of the
colors (think Roy G. Biv).
Know the two basic equations that describe
electromagnetic radiation:
Know how to use this equations to calculate various
wavelengths, frequencies, and energies of photons.
Know the two views of electromagnetic radiation: as a
wave and as a particle (photons)
Do all moving particles have wavelength?
Yes. Louis de Broglie said if light can be treated as a
particle (photon) then why not the other way around?
Any moving particle with mass and velocity should have
a corresponding wavelength.
where
p
is momentum (
p = mv
)
The most important moving object for us is the electron.
Now we can treat the electron as a wave. When confined
to the region around the nucleus, the electron behaves as
a
standing
wave.
What is the essence (observations) of the photoelectric
effect?
How did Einstein explain this effect?
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 Fall '09
 McCord
 Chemistry, Atom, Photon, Schrodinger Equation, Atomic orbital

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