Respuesta :
Correct option is A, 1s²2s⁵ is impossible, according to the Pauli exclusion principle.
The inability of the electrons to continually occupy their orbitals falls under the topic of impractical electron configurations. For instance, there can only be two electrons in each orbital, subshell, and quantum number.
The Pauli Exclusion Principle is what.
The Pauli exclusion principle states that no two electrons in a single atom will have the same set of quantum numbers (n, l, ml, and ms). Every electron should have or be in its own unique state, to put it simply (singlet state). Two crucial rules govern the Pauli Exclusion Principle:
Only two electrons can be present in the same orbital at once. It is necessary for the two electrons to be antiparallel or have opposing spins in order for them to be in the same orbital.
However, Pauli's Exclusion Principle does not only apply to electrons. It also applies to fermions and other half-integer spin particles. It doesn't apply to bosons because they have integer spins and symmetric wave functions.
Bosons can also share or have the same quantum states, in contrast to fermions. Fermions are named after the Fermi-Dirac statistical distribution that they obey. However, the name "boson" comes from the Bose-Einstein distribution function. Here's an illustration: maximum number of electrons per subshell: s= 2, p=6 3s2 is hence not feasible.
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Complete Question -
Which of the following electron configurations is impossible, according to the Pauli exclusion principle?
0 1s 2s⁵
0 1s 2 25 2 2p
0 15 2 2s 2p 635' 1s 22s22p5
0-1s ? 25 ? 2p
