1. What is the "density of states," (e)? Why is it sometimes referred to as the "density of orbitals?" If (e) represents the "density of orbitals," what does (e) f(e) represent? [Hint: Look at Figure 7.3 in the text.]
Enter your answer here:
2. Estimate the Fermi energy eF for the free ("conduction") electrons in copper metal. To do this, consider the fact that copper has one valence electron per atom, and that it is this valence electron which becomes the conduction electron in the metal. This means you can calculate n of the conduction electrons (= n of the atoms). Copper metal has a density of 8890 km/m3 and a mole of copper atoms has a mass of about 63.55 grams.
Express your answer for the Fermi energy in eV.
3. A Fermi gas is called "degenerate" when
Check the correct answer: a) the Fermi energy is big compared to the temperature.b) each of the orbitals of energy lower than the Fermi energy eF are multiply occupied.c) there is more than one particle in the lowest energy orbital.d) it is degraded or debased by loss of moral stability. Below is a space for your thoughts, including general comments about today's assignment (what seemed impossible, what reading didn't make sense, what we should spend class time on, what was "cool", etc.): You may change your mind as often as you wish. When you are satisfied with your responses click the SUBMIT button.
I received no help from anyone on this assignment. I received help from someone on this assignment (document in comments section).