How does the quantum model of the atom differ from Bohr's model of the atom? A.
The quantum model describes orbitals as three-dimensional shapes, whereas Bohr's model described electron orbits as flat, circular paths.

B.
Bohr's model applied only to hydrogen, and the quantum model applies only to metals.

C.
Bohr's model assumed a positively charged nucleus, but the quantum model does not.

D.
Bohr's model showed that electrons constantly move away from the nucleus, but the quantum model shows the opposite.