What types of orbital overlap occur in cumulene?

(c) What atomic orbitals are involved in the stacking of graphite sheets with each other?

Although polyethylene can twist and turn in random ways, the most stable form is a linear one with the carbon backbone oriented as shown in the following figure:

The solid wedges in the figure indicate bonds from carbon that come out of the plane of the page; the dashed wedges indicate bonds that lie behind the plane of the page. (a) What is the hybridization of orbitals at each carbon atom? What angles do you expect between the bonds?

Consider the structure of the amino acid alanine. Indicate the hybridization about each interior atom.