Name: ______________________________ Section: _____________________________ Student ID#:__________________________ Work in groups on these problems. You should try to answer the questions without referring to your textbook. If you get stuck, try asking another group for help. In chemistry molecular orbital (MO) theory is a method for determining molecular structure in which electrons are not assigned to individual bonds between atoms, but are treated as moving under the influence of the nuclei in the whole molecule. In this theory, each molecule has a set of molecular orbitals. Objectives Practice energy diagrams for molecular orbital theory. Calculate the number of bonding and antibonding electrons in simple molecules. Calculate bond order for simple molecules. Determine the magnetism of simple molecules. Procedure Draw the lewis structure for the following molecules. Fill in the MO diagram that corresponds to each of the molecules given. Determine the number of bonding and antibonding electrons for each of the molecules. Determine the number of sigma and pi bonds for each of the molecules. Calculate bond order and determine magnetism Summarize your findings for each molecule by determining if this molecule would exist and write the MO electron configuration. H2 Unnamed: 1 Unnamed: 2 Unnamed: 3 Unnamed: 4 Unnamed: 5 Lewis Structure: NaN Molecular Orbital Energy Diagram NaN NaN NaN Total # of bonding electrons NaN # of Sigma Bonds NaN Bond Order NaN Total # of antibonding electrons NaN # of pi Bonds NaN Paramagnetic/Diamagnetic NaN Should this molecule exist? Should this molecule exist? MO electron configuration: NaN NaN NaN 0 1 2 3 4 5 H2+ NaN NaN NaN NaN NaN Lewis Structure: NaN Molecular Orbital Energy Diagram NaN NaN NaN Total # of bonding electrons NaN # of Sigma Bonds NaN Bond Order NaN Total # of antibonding electrons NaN # of pi Bonds NaN Paramagnetic/Diamagnetic NaN Should this molecule exist? Should this molecule exist? MO electron configuration: NaN NaN NaN He2 NaN NaN NaN NaN NaN Lewis Structure: NaN Molecular Orbital Energy Diagram NaN NaN NaN Total # of bonding electrons NaN # of Sigma Bonds NaN Bond Order NaN Total # of antibonding electrons NaN # of pi Bonds NaN Paramagnetic/Diamagnetic NaN Should this molecule exist? Should this molecule exist? MO electron configuration: NaN NaN NaN He2+ Unnamed: 1 Unnamed: 2 Unnamed: 3 Unnamed: 4 Unnamed: 5 Lewis Structure: NaN Molecular Orbital Energy Diagram NaN NaN NaN Total # of bonding electrons NaN # of Sigma Bonds NaN Bond Order NaN Total # of antibonding electrons NaN # of pi Bonds NaN Paramagnetic/Diamagnetic NaN Should this molecule exist? Should this molecule exist? MO electron configuration: NaN NaN NaN 0 1 2 3 4 5 Li2 NaN NaN NaN NaN NaN Lewis Structure: NaN Molecular Orbital Energy Diagram NaN NaN NaN Total # of bonding electrons NaN # of Sigma Bonds NaN Bond Order NaN Total # of antibonding electrons NaN # of pi Bonds NaN Paramagnetic/Diamagnetic NaN Should this molecule exist? Should this molecule exist? MO electron configuration: NaN NaN NaN 0 1 2 3 4 5 Be2 NaN NaN NaN NaN NaN Lewis Structure: NaN Molecular Orbital Energy Diagram NaN NaN NaN Total # of bonding electrons NaN # of Sigma Bonds NaN Bond Order NaN Total # of antibonding electrons NaN # of pi Bonds NaN Paramagnetic/Diamagnetic NaN Should this molecule exist? Should this molecule exist? MO electron configuration: NaN NaN NaN 0 1 2 3 4 5 B2 NaN NaN NaN NaN NaN Lewis Structure: NaN Molecular Orbital Energy Diagram NaN NaN NaN Total # of bonding electrons NaN # of Sigma Bonds NaN Bond Order NaN Total # of antibonding electrons NaN # of pi Bonds NaN Paramagnetic/Diamagnetic NaN Should this molecule exist? Should this molecule exist? MO electron configuration: NaN NaN NaN 0 1 2 3 4 5 N2 NaN NaN NaN NaN NaN Lewis Structure: NaN Molecular Orbital Energy Diagram NaN NaN NaN Total # of bonding electrons NaN # of Sigma Bonds NaN Bond Order NaN Total # of antibonding electrons NaN # of pi Bonds NaN Paramagnetic/Diamagnetic NaN Should this molecule exist? Should this molecule exist? MO electron configuration: NaN NaN NaN 0 1 2 3 4 5 N2+ NaN NaN NaN NaN NaN Lewis Structure: NaN Molecular Orbital Energy Diagram NaN NaN NaN Total # of bonding electrons NaN # of Sigma Bonds NaN Bond Order NaN Total # of antibonding electrons NaN # of pi Bonds NaN Paramagnetic/Diamagnetic NaN Should this molecule exist? Should this molecule exist? MO electron configuration: NaN NaN NaN 0 1 2 3 4 5 O2 NaN NaN NaN NaN NaN Lewis Structure: NaN Molecular Orbital Energy Diagram NaN NaN NaN Total # of bonding electrons NaN # of Sigma Bonds NaN Bond Order NaN Total # of antibonding electrons NaN # of pi Bonds NaN Paramagnetic/Diamagnetic NaN Should this molecule exist? Should this molecule exist? MO electron configuration: NaN NaN NaN 0 1 2 3 4 5 O22- NaN NaN NaN NaN NaN Lewis Structure: NaN Molecular Orbital Energy Diagram NaN NaN NaN Total # of bonding electrons NaN # of Sigma Bonds NaN Bond Order NaN Total # of antibonding electrons NaN # of pi Bonds NaN Paramagnetic/Diamagnetic NaN Should this molecule exist? Should this molecule exist? MO electron configuration: NaN NaN NaN 0 1 2 3 4 5 O2- NaN NaN NaN NaN NaN Lewis Structure: NaN Molecular Orbital Energy Diagram NaN NaN NaN Total # of bonding electrons NaN # of Sigma Bonds NaN Bond Order NaN Total # of antibonding electrons NaN # of pi Bonds NaN Paramagnetic/Diamagnetic NaN Should this molecule exist? Should this molecule exist? MO electron configuration: NaN NaN NaN 0 1 2 3 4 5 NO NaN NaN NaN NaN NaN Lewis Structure: NaN Molecular Orbital Energy Diagram NaN NaN NaN Total # of bonding electrons NaN # of Sigma Bonds NaN Bond Order NaN Total # of antibonding electrons NaN # of pi Bonds NaN Paramagnetic/Diamagnetic NaN Should this molecule exist? Should this molecule exist? MO electron configuration: NaN NaN NaN 0 1 2 3 4 5 CO NaN NaN NaN NaN NaN Lewis Structure: NaN Molecular Orbital Energy Diagram NaN NaN NaN Total # of bonding electrons NaN # of Sigma Bonds NaN Bond Order NaN Total # of antibonding electrons NaN # of pi Bonds NaN Paramagnetic/Diamagnetic NaN Should this molecule exist? Should this molecule exist? MO electron configuration: NaN NaN NaN 0 1 2 3 4 5 CN NaN NaN NaN NaN NaN Lewis Structure: NaN Molecular Orbital Energy Diagram NaN NaN NaN Total # of bonding electrons NaN # of Sigma Bonds NaN Bond Order NaN Total # of antibonding electrons NaN # of pi Bonds NaN Paramagnetic/Diamagnetic NaN Should this molecule exist? Should this molecule exist? MO electron configuration: NaN NaN NaN 0 1 2 3 4 5 CO- NaN NaN NaN NaN NaN Lewis Structure: NaN Molecular Orbital Energy Diagram NaN NaN NaN Total # of bonding electrons NaN # of Sigma Bonds NaN Bond Order NaN Total # of antibonding electrons NaN # of pi Bonds NaN Paramagnetic/Diamagnetic NaN Should this molecule exist? Should this molecule exist? MO electron configuration: NaN NaN NaN 0 1 2 3 4 5 NO2- NaN NaN NaN NaN NaN Lewis Structure: NaN Molecular Orbital Energy Diagram NaN NaN NaN Total # of bonding electrons NaN # of Sigma Bonds NaN Bond Order NaN Total # of antibonding electrons NaN # of pi Bonds NaN Paramagnetic/Diamagnetic NaN Should this molecule exist? Should this molecule exist? MO electron configuration: NaN NaN NaN 0 1 2 3 4 5 NO+ NaN NaN NaN NaN NaN Lewis Structure: NaN Molecular Orbital Energy Diagram NaN NaN NaN Total # of bonding electrons NaN # of Sigma Bonds NaN Bond Order NaN Total # of antibonding electrons NaN # of pi Bonds NaN Paramagnetic/Diamagnetic NaN Should this molecule exist? Should this molecule exist? MO electron configuration: NaN NaN NaN