The fourth Quantum number

[Nadia Nichol]

In what circumstance is the usage of the fourth quantum (ms) number necessary? How does it influence the structure of complex atomic orbitals and electron distribution within multi-electron atoms in comparison to H-atoms?

[Bilan Guan 2H]

The fourth quantum number describes the spin of an atom, either -1/2 or +1/2. Like discussed in lecture, no two electrons in the same atom have the same four quantum numbers, I think how this influence atomic orbitals is that there are no more than two electrons in each orbital (one e- spin -1/2 while the other e- spin +1/2). In terms of electron distribution within multi-electron atoms or H-atoms, I'm curious about that too.

[806063252]

that there are no more than two electrons in each orbital and that they have to have opposite spins is electron Distribion is affected.