What are the quantum numbers for the element Ni?

3, 2, 0, -1/2

The for Ni (electron 28) are:

Principal = 3 (because the electron is in energy level 3) Angular = 2 (because the electron is in a d sublevel) Magnetic = 0 (because the electron is in the middle orbital of the 5 orbitals in the 3d sublevel) Spin = -1/2 (because the electron is down spin()

Here is a video to provide more help with quantum numbers.

Hope this helps!