CHEM 251 1st Edition Lecture 8 Outline of Last Lecture I. Clicker QuestionsII. Heteronuclear MO DiagramsIII. MixingIV. VSEPR TheoryOutline of Current Lecture V. Clicker QuestionVI. Group ProblemsCurrent LectureVII. Clicker Questiona. Which element is most electronegative? Fr, Mo, Br, Clb. Which will have the largest dipole? CH3Cl, CH3F, CF4c. What pair of atomic orbitals produces the following: Answer: VIII. Group Problema. Why is diazomethane explosive while ethyl diazoacetate is stable?i. The latter has resonance stabilizationb. Problem 2: 3 partsi. Draw the orbitals that form a pi bond in CN–.These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.ii. Draw the orbitals that form a pi* anti-bond in CN. Make sure that your answer reflects any polarization present in the covalent bond.iii. Would you expect CN– to be more or less polarized than CO? LESSc. Explain why the sigma/pi ordering is different in N2 and F2.i. 2s/2p energy spacing increases across a periodii. why? Because higher Zeff affects electrons more iii. 1s/2p mixing occurs in N2 but not
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