The figure shows three labeled levels in a band and also the Fermi level for the material. The temperature is O K. Rank the three levels according to the probability of occupation, greatest first if the temperatureis (a) O K and (b) 1000 K. (c) At the latter temperature, rank the levels according to the density of states N(E) there, greatest first. (a) probability of occupation, greatest first, at 0 K (b) probability of occupation, greatest first, at 10C (c) density of states N(E), greatest first, at 1000 K A particular element has 60 electrons. Assume that you can put the 60 electrons into the atomic shells one by one and can neglect any electron- electron interaction. With the atom in ground state, what is the spectroscopic notation for the guantum number 7 for the last electron? Through what minimum potential difference must an electron in an x-ray tube be accelerated so that it can produce x rays with a wavelength of 0.110 nm? Number n Units v