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State and explain Pauli's Exclusion Principle. |
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Answer» Solution :Pauli's exclusion PRINCIPLE states that "No two electrons in an atom can have the same SET of values of all four quantum NUMBER H(Z= 1 )` 1S^(-1)`. One electron is present in hydrogen atom, the four quantum numbers are : N = 1 , l = 0 , m = 0 and s` = +1//2.`For heliumZ = 2 . He: `1s^(2)` In this one electron has the quantum number . Same as that of hydrogen n = 1 , l = 0, m = 0 and s ` = - 1//2`. For other quantum number is different ` i.e., n = 1 , l = 0 , m = 0 and ` s` = - 1//2` . |
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