Question

Why does the Pauli exclusion principle work ?
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pls fast..♥

Answer 1

Pauli Exclusion Principle. No two electrons in an atom can have identical quantum numbers. This is an example of a general principle which applies not only to electrons but also to other particles of half-integer spin (fermions). It does not apply to particles of integer spin (bosons).

Answer 2

hi
An electron can have four quantum no. among them two electron can have three quantum no. same (principal ,azimuthal and magnetic) but fourth that is spin quantum no. should be different which is -1/2 or 1/2