Determine the structure of the unknown from the given spectroscopic data (IR, MS, 1H NMR, 13C NMR (Broadband decoupled with carbon types). For complete credit, you must fully substantiate your answer with key supporting data from each spectrum - just giving the structure is insufficient. The UV-Vis is given, but it is not necessary to determine the structure. (20 points)

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.