1. Write the VB wave function of CH, including explicitly only valence electrons of C and H, and ionic contribution and neglecting hybridization.
2. Outline the MO energy level diagram for CH (with valence electrons only), and demonstrate the electrons by spin-arrows.
3. Calculate LUMO and HOMO, write down their wave functions in terms of appropriate AO's, and draw them (with factor 1 for both C and H) using the Orbital Viewer.
4. Identify the bond order of CH. Would you predict the molecule to stretch or shrink upon (1) ionization, (2) electron attachment, and in each case briefly explain why.