Sign Up. Which set of three quantum numbers does not specify an orbital in the hydrogen atom? Which of the four quantum numbers denotes the electron's orbital within the sublevel? As a result, two factors control the energy of an orbital for most atoms: the size of the orbital and its shape, as shown in the figure below. Which of the following properties is associated with the value of the n quantum number? Naming Alkenes with Examples Internal Energy vs. Ask a question Ask a question. What is the l quantum number for a 4p orbital? Identify the principal quantum number and the angular momentum quantum number for the 3d subshell. The total number of orbitals in a shell with principal quantum number 5 is: a.