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MSE 170Midterm 1/26/15100ptsExam is closed book, closed notes, closed neighborsName____________________Instructions:Student ID ________________1Write your name and student id on top of page2Write legibly3Show work as needed to justify answers4Underline all final numerical answers5Point values for problems are in parenthesis i.e (5) for 5 points6You are provided equations, constants, and pertinent tables on back pagesShort Answer1.(3)What is the missing element in the core MSE elements/skills2.(6)Are s-orbitals from the K-shell higher or lower energy than from the M shell?How many electrons does it take to fill a 3d orbital?How many electrons to fill a sp3 hybrid orbital?3.(4) Ar is a solid at 80K, what is the primary type of bonding?What is the primary type of bonding between molecules for solid water?4.(6) Within a factor of 3, what is the bond energy of NaCl, SiC, and Ar (in units of kJ/mol or eV)5.(4) FCC and HCP are both hexagonal closest packing structures (densest possible packing ofspheres with hexagonal plane).