Naltrexone is an antagonist at the mu opioid receptor. What is the hybridization state and geometry of the nitrogen atom in naltrexone? sp3 hybridized and bent sp3 hybridized and trigonal planar sp3 hybridized and tctrahcdral sp2 hybridized and trigonal planar sp hybridized and linear geometry Which is the major contributing resonance structure to the "boxed" molecule below