GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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An atomic orbital can hold a minimum of 6 electrons, each with opposite spins
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An atomic orbital can only hold a maximum of 2 electrons, each with opposite spins
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An atomic orbital can hold a minimum of 2 electrons, each with opposite spins
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None of the above
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Detailed explanation-1: -Pauli’s Exclusion Principle states that no two electrons in the same atom can have identical values for all four of their quantum numbers. In other words, (1) no more than two electrons can occupy the same orbital and (2) two electrons in the same orbital must have opposite spins (Figure 46(i) and (ii)).
Detailed explanation-2: -The Pauli Exclusion Principle states that, in an atom or molecule, no two electrons can have the same four electronic quantum numbers. As an orbital can contain a maximum of only two electrons, the two electrons must have opposing spins.
Detailed explanation-3: -Pauli exclusion principle, assertion that no two electrons in an atom can be at the same time in the same state or configuration, proposed (1925) by the Austrian physicist Wolfgang Pauli to account for the observed patterns of light emission from atoms.
Detailed explanation-4: -Pauli exclusion principle – states that a maximum of two electrons can occupy a single atomic orbital but only if the electrons have opposite spins.
Detailed explanation-5: -Any orbital can hold a maximum of 2 electrons with opposite spin. The first shell has one 1s orbital and holds 2 electrons. The second shell holds 8 electrons; 2 in a 2s orbital and 6 in three 2p orbitals. The third shell holds 18 electrons; 2 in a 3s orbital; 6 in three 3p orbitals; and 10 in five 3d orbitals.