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An astronomer discovers brightly glowing disk of gas in space surrounding a neutron star, like the one pictured below. What would they say happened?    Attributions Images NASA, ESA, and Z. Levay (STScI); Radio: NRAO/AUI/NSF GBT+VLA 1.4 GHz mosaic (Dyer, Maddalena and Cornwell, NRAO); X-ray: NASA/CXC/Rutgers/G. Cassam-Chenai and J. Hughes et al.; Optical: F.Winkler/Middlebury College and NOAO/AURA/NSF; and DSS. Full-shell Image of SN 1006 Showing Location of Hubble Observations [photograph]. (public domain). Via NASA.

The wave model replaced the Bohr, modified solar system model of the atom because the wave model can explain and predict things when the Bohr model either fails to explain them or provides incorrect predictions. Which of the following is one of the reasons that the wave model is better than the Bohr model?

These experiments with electrons and slits told us something important about the nature of electrons. They tested and confirmed a new idea about electrons. What new information did we learn from these results?

What can you conclude from the cross-section below?  

When you compare saturated with unsaturated fatty acids containing the same number of carbon atoms, what is true?

When electrons are sent one at a time towards a pair of closely spaced slits and detected using a screen placed beyond the slits, they gradually build up a pattern like the one shown in the figure below.    Image Description a series of images showing dots on a screen. The first image appears to show random dots, but as they progress, and there are more dots, it is clear that the dots are grouped into vertical stripes separated by regions where there are almost no dots. Attributions Images Belsazar. Double-slit experiment results Tanamura 2 [photograph]. (CC BY-SA 3.0). Via Wikimedia Commons.

The next two questions deal with a stick of dynamite exploding.

Below is a dot density diagram showing the 2p orbital. In this diagram what do the light areas represent?     

An air conditioner is normally placed in a window so the hot air from the back blows outside. What would happen if the air conditioner were placed in the middle of a closed room and turned on?

If they placed a detector at the slits in the experiment described above to measure which slit each electron went through, what would happen?