Question

Two electrons are found in the same atom. One has the quantum number set (2, 1, -1, +½), and the other has the quantum number set (2, 1, -1, -½). They share the

same sublevel, but are in different orbitals.
same orbital, but have different spin directions.
same energy level, but are in different sublevels.
same type of sublevel, but are found in different energy levels.

Answer 1

Everything is the same about these electrons except one has +1/2 and the other has -1/2 spin, which is what that last number means.

Answer 2

So it's A? @Kainui

Answer 3

Please help..