[Foobarz]

You know what I think Chang 8th ed is horrible at describing the Bohr model
Could someone just explain the whole thing to me?
Also I found this postulate on one of the old AP questions:
 "The angular momentum of the electron is nh/2pi where n is any positive integer"
What is this? I thought Bohr's model didn't deal with angular momentum and that angular momentum was part of Schrodinger's wave function?