Answer
a) $n=1$, $l=0$
b) $n=3$, $l=0$
c) $n=5$, $l=1$
d) $n=3$, $l=2$
e) $n=4$, $l=3$
Work Step by Step
Every orbital's name consists of a number, which represents the principal quantum number, i. e. the ordinal number of the main energy level, and a letter, which represents the angular quantum number, i. e. the sublevel of the orbital. The $s$ sublevel implicates that angular quantum number equals 0, and similarly, $p$ sublevel is for $l=1$, $d$ sublevel is for $l=2$ and $f$ sublevel is for $l=3$. Accordingly, the $n$ and $l$ values for the following subshells are:
a) $1s$: $n=1$, $l=0$
b) $3s$: $n=3$, $l=0$
c) $5p$: $n=5$, $l=1$
d) $3d$: $n=3$, $l=2$
e) $4f$: $n=4$, $l=3$
