Pauli exclusion principle

Pauli exclusion principle

1. States that in a atom, no two electrons can have the same four electronic quantum numbers

   • In one orbital a maxium of two electrons can be founded

2. The two electrons must have opposing spins,That means one would spin up (+1/2) and the other would spin down (-1/2)

3. We have the first three quantum numbers n=1, I=0, ml=0

4. The subshell cand hold only two electrons and when filled the electrons have oppositive spins