Question

Hey frnd plz explain me pauli exclusion principle ???☺☺☺☺☺ briefly ...... No spam ans plzz.....☺☺☺☺☺ THANKS .;)

Answer 1

this is ur answer frnd hope it helped u.

The Pauli exclusion principle is the quantum mechanical principle which states that two or more identical fermions (particles with half-integer spin) cannot occupy the same quantum state within a quantum system simultaneously. In the case of electrons in atoms, it can be stated as follows: it is impossible for two electrons of a poly-electron atom to have the same values of the four quantum numbers: n, the principal quantum number, ℓ, the angular momentum quantum number, mℓ, the magnetic quantum number, and ms, the spin quantum number. For example, if two electrons reside in the same orbital, and if their n, ℓ, and mℓ values are the same, then their ms must be different, and thus the electrons must have opposite half-integer spin projections of 1/2 and −1/2. This principle was formulated by Austrian physicist Wolfgang Pauli in 1925 for electrons, and later extended to all fermions with his spin–statistics theorem of 1940.

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Answer 2

Pauli exclusion principle means no two electrons in the same orbital should not be in same spin should be in opposite spin direction
Example:
Mg(magnesium)atomic number is 12