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I know that if I have questions on any of the above, I should do the following: 1. Re-read the information posted on D2L…the answer might already be there 🙂 if I am still not sure, then… 2. Email or Text Nicole  and ask her.

I understand that the lecture content of this course is online, in the format of video links.  Watching and taking notes on all lecture videos is required in this course.

I understand that there are online quizzes AND online exams in this course. AND I will ensure I am available for my final exam (3 hours).  Monday Dec 15th 11:00am-1:50pm.

This diagram depicts the energies of a few shells (energy levels) for the atom that produced the spectrum above. Image Description Diagram of five lines to represent energy levels drawn horizontally. N=1 is at the bottom and n=5 is at the top. Starting from the top, the line n=5 is shown. Moving downward, there is a small gap between the lines n=5 and n=4, a slightly larger gap between n=4 and n=3, an even larger gap between n=3 and n=2, and a very large gap is shown between n=2 and n=1. Which of the following situations would cause the atom to emit the highest frequency photon?

In an early experiment that helped determine the nature of atoms, gas was enclosed in a long, narrow glass tube. A metal plate near one end of the tube was given a large positive charge, and a plate at the other end was given a large negative charge. The particles that collected at each end of the tube were studied. Thomson’s plum pudding model was developed as a result of these experiments. What was discovered about atoms as a result of these experiments?

If microwaves were used instead of visible or UV light, what would be observed?

In the first half of the 1900s, the Bohr model was abandoned in favor of the quantum mechanical (wave) model of the atom. The next two questions test your understanding of the quantum mechanical model of the atom.

What is the distance between two successive light areas called? The distance is labeled 1 on the picture.

In the picture, a sound wave moves from the top of the page towards the bottom and passes through a small hole in a barrier (point 2 on the diagram). The light areas represent regions of low pressure, and the dark areas represent high pressure. The following questions ask you to use your understanding of wave behavior to explain what is happening at certain points.    Image Description The image shows horizontal evenly spaced bands of dark and light that extend from the top to a barrier with a hole at the bottom. The distance between two adjacent white bands is labeled 1, the hole is labeled 2. In the next three questions, use your understanding of wave behavior to explain what is happening at certain points.

In an important experiment used to determine the nature of atoms, a gas like hydrogen, neon, or mercury is excited by sparking it with electricity. The light emitted is separated out into individual colors using a prism or diffraction grating and a few lines of colored light are seen. The next three questions deal with your understanding of the mechanism behind these discrete spectra.    Jkasd, CC BY 3.0 , via Wikimedia Commons Image Description The image shows a dark black horizontal rectangle with thin colored lines spread out on it. There are magenta and purple lines on the left side, then moving right, blue, shades of green, one yellow line further away, and one red line fully on the right side.