CH1012
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4
BAND THEORY
•The extension of MO theory to
solids is called Band Theory.
•It is used to quantitatively explain
the conductivity of metals,
insulators and semiconductors.
•Metallic solids pack in highly
organised manners such as HCP.
C9F2
Hexagonal
closest
packing (HCP)

74% efficient
Mg, Ti, Zn