AP Chemistry Multiple Choice Practice Test

Question 1 of 3
23% Get this Question Right
Which of the following sets of quantum numbers refers to a 2s orbital?
d)n=2,l=1,m(little l)=-1,m(little s)=+1/2
n=2,l=0,m(little l)=0,m(little s)=+1/2
n=1,l=2,m(little l)=2,m(little s)=+1/2
n=2,l=2,m(little l)=0,m(little s)=+1/2
n=1,l=2,m(little l)=1,m(little s)=+1/2