Chemistry 111 Final Exam 4 Test Questions And 100% Correct Answers Updated.

Resonance Structures - Answer Have the same relative placement of atoms but different locations of bonding and lone electron pairs Resonance Hybrid - Answer Molecules that can be depicted by more than one valid Lewis structure Fractional Bond Orders - Answer bond order= (electron pairs)/ (bonded-atom pairs) Formal Charge - Answer The charge an atom would have if all electrons were shared equally Electron Deficient Atoms - Answer Atoms that do not follow the Octet rule and are fine with have less than 8 electrons. EX) B and Be Odd-Electron Species - Answer A molecule with an odd number of electrons- free radical Expanded Valence Shells - Answer A molecule that is fine with having more than 8 electrons. These are nonmetals from period three or higher Electron-Group Arrangement - Answer both bonding and non bonding groups Molecular Shape - Answer Three-dimensional arrangement of nuclei joined by the bonding groups. Linear Arrangement - Answer 2 electron groups AX2 180 degrees Trigonal Planar Arrangement - Answer 3 electron groups 120 degrees Trigonal Planar Shape - Answer AX3- no lone pairs