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Chapter 42, Problem 2P
To determine

The ionization energy of potassium.

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The density of potassium, which has the FCC structure and one atom per lattice point, is 0.855 g/cm3. The atomic weight of potassium is 39.09 g/mole and Avogadro's number, NA= 6.02*1023 atom/mol. The lattice parameter for this structure is equal to: O a. a,= 6.7223*10 8 cm O b. ao= 5.6355*108 cm O c. a,= 6.3355*108 cm O d. ao= 5.3355*10 8 cm
Pls help ASAP. Pls show all work annd circle the final answer.
A silicon p-n junction consists of a p-type region containing 3x1016 cm-3 acceptors and an n- type region containing also 1017 cm-3 donors. a. Calculate the density of electrons and holes in both p-type and n-type regions under thermal equilibrium at room temperature. b. Calculate the built-in potential of the p-n junction?             c. Calculate the width of the depletion layer under a reverse bias of 1.0 V. d. Based on c, calculate the junction capacitance. Note that the junction cross-session area is 1.2 mm2.
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