This confuses me: In the wikipedia article it talks about how the majority charge carrier is electrons for an N-type semiconductor
How come the electrons in the conduction band don't just jump into the holes present in the valence band?
An intrinsic semi-conductor is doped with an atom that has an extra electron. For example Silicon is doped with Boron. Here Boron has 5 electrons in it's valence band vs Silicon has 4 (I don't know the numbers for sure, just an example), so the extra electron has nowhere to go (maybe my way of thinking is wrong?)