4.3 Two-State Systems

1

What is a two-state system?

2

What are the Hamiltonian coefficients?

3

Will the energy of a linear combination of two states always be in between the energies of the pure states?

4

When is the energy lowering effect of twilight terms particularly large?

5

How does that explain qualitatively why two-electron chemical bonds are much more common than one-electron ones?