What are $n$-type and $p$-type semiconductors? Name the majority and minority charge carriers in each.

(N/A) $1$. $n$-type semiconductor: When a pure semiconductor (like $Si$ or $Ge$) is doped with a pentavalent impurity (like $As$,$P$,or $Sb$),it becomes an $n$-type semiconductor. In this,electrons are the majority charge carriers and holes are the minority charge carriers.
$2$. $p$-type semiconductor: When a pure semiconductor (like $Si$ or $Ge$) is doped with a trivalent impurity (like $B$,$Al$,or $In$),it becomes a $p$-type semiconductor. In this,holes are the majority charge carriers and electrons are the minority charge carriers.