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Using your periodic table calculate the unit cell parameter a of palladium (Pd) (6pts) (B) 789 A (c) 1.44 A (D) 98.2 A Onestian Which of the following temary compound is likely to form a semiconductur with tetravalent tetrahedral structure? (6pts (B) Al Gesez (C) Cdsnusb (D) SnTe Using the molar mass and density from your periodic table, calculate the charge carrier density n of Na? (6pts) (A) 5.08.10" electrons m' (B) 2.68 102 electrons /m' (c) 1.32 107 electrons /m' Question nductor has n 4047.1012 electronsym in the conduction band at T-300 K. What is the bandgap of that semiconductor in ev? (6pts) (A) Eg 3.21 eV (B) Eg 156 ev (C) Eg 033 ev (D) Eg -0.67 ev
