The valence band of a semiconductor is made up of bonding molecular orbitals and the conduction band

Question:

The valence band of a semiconductor is made up of bonding molecular orbitals and the conduction band of antibonding molecular orbitals.
(a) Given this fact would you expect n-type doping to strengthen or weaken the bonds in a semiconductor?
(b) Would you expect p-type doping to strengthen or weaken the bonds in a semiconductor?