What is the second quantum of a 3 p 3 electron in phosphorus?

In phosphorus (atomic number 15), the electron configuration is 1s² 2s² 2p⁶ 3s² 3p³. For the 3p³ electrons, the second quantum number (l) for the p subshell is 1. Thus, the second quantum number for a 3p³ electron in phosphorus is 1, indicating that it is in a p orbital.