Energy spacing in the description of energy bands.

by dvurger
Tags: bands, description, energy, spacing
dvurger is offline
Apr25-12, 05:43 PM
P: 1
"The electrons of a single isolated atom occupy atomic orbitals, which form a discrete set of energy levels. If several atoms are brought together into a molecule, their atomic orbitals split, as in a coupled oscillation. This produces a number of molecular orbitals proportional to the number of atoms. When a large number of atoms (of order 1020 or more) are brought together to form a solid, the number of orbitals becomes exceedingly large. Consequently, the difference in energy between them becomes very small." -Wikipedia on energy bands.

I don't understand that implication between the number of orbitals and the energy spacing converging to 0.
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