ms= +1/2
Ms = + 1/2
ml = -1
ms -1/2
ms=-1/2
The principal quantum number is the level of the most energetic electrons in an atom. It also corresponds to which period the element is in on the periodic table. For example, barium has a principal quantum number of 6 because its valence electrons are in level 6, and the element is in period 6.
Ms = + 1/2
Ms = + 1/2
ms= +1/2
ms = -1/2
ml = -1
ml = -1
ms = -1/2
ms -1/2
ms=-1/2
ms -1/2
L-1 electron configuration
A 3s electron