What quantum numbers specify a 2p orbital?
Principal = 2 Azimuthal = 1
The principal number tells us which energy level an electron is in. The 2 p sublevel is in energy level 2
The azimuthal quantum number tells us which sublevel an electron is in. Here the electrons are in a p sublevel. (s=0, p=1, d=2, f=3)
Not part of the question but related info-
The magnetic number would tell us which orbital (of 3 in the 2p) an electron is in.
The spin number would tell us if the electron is spin up or spin down.
Remember that all electrons must have a unique set of four quantum numbers.