Two electrons are found in the same atom. one has the quantum number set (3, 2, 0, + and the other has the quantum number set (3, 1, 0, + they share thea same sub level but differentt orbitalsb same orbital but different spin directionsc same energy level but different sublevelsd same type of sub level but found in different energy sub levels

D. Same energy level but different sublevel.

Explanation

There are four quantum numbers [1]:

n, the principal quantum number,l, the orbital angular momentum quantum number,, the magnetic quantum number, and, the electron spin quantum number.

As their names might suggest:

n determines the main energy level of an electron. l determines the type of sublevel of an electron.Each sublevel might contain more than one orbital. gives the orbital of an electron.Each orbital contains up to two electrons. tells two electrons in the same orbital apart.

The two electrons in question come from the same atom. The question suggests that they have the same n, , and . As a result, both electrons are in main energy level n = 3. They share the same spin.

However, the two electrons differ in their value of l.

l = 2 for the first electron. It belongs to a d sublevel. l = 1 for the second electron. It belongs to a p sublevel. Reference

[1] Kamenko, Anastasiya, et. al, "Quantum Numbers", Physical & Theoretical Chemistry, Chemistry Libretexts, 24 Mar 2017.

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