(a)n = 1, l = 0 implies a 1s orbital.
(b)n = 3 and l = 1 implies a 3p orbital.
(c)n = 4 and l = 2 implies a 4d orbital.
(d)n = 4 and l = 3 implies a 4f orbital.
(a)n = 1, l = 0 implies a 1s orbital.
(b)n = 3 and l = 1 implies a 3p orbital.
(c)n = 4 and l = 2 implies a 4d orbital.
(d)n = 4 and l = 3 implies a 4f orbital.