The three quantum numbers for an electron in a hydrogen atom in a certain state are n = 4, l = 2,M_l = 1.The electron is located in what type of orbital? A) 4p B) 3p C) 4s D) 4d E) 3d

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The principal quantum number (n) is 4, which indicates the energy level or shell of the electron. The angular momentum quantum number (l) is 2, which corresponds to the d orbital. The magnetic quantum number (m) is not given, but the value of M_l (magnetic spin quantum number) is 1, indicating that the electron has a positive spin. Therefore, the electron is located in a 4d orbital.

The Three Quantum Numbers for an Electron in a Hydrogen