More than once, I've written that
the Pauli Exclusion Principle holds
that ~"no more than one 'electron'
can occupy an 'atomic shell'".
In recent reading, I've found that
I was in Error in what I'd written.
The Pauli Exclusion Principle holds
that no more than =two= so-called
"electrons" can occupy the so-called
"same atomic orbial".
I Apologize for promulgating Ralse
K. P. Collins