Question

7 which electron configuration represents a violation of the pauli exclusion principle? * (0.5 points)

Explanation:

The Pauli exclusion principle states that no two electrons in an atom can have the same set of four quantum numbers, and in an orbital, two electrons must have opposite spins (one spin - up and one spin - down). In option D, the 2s orbital has two electrons with the same spin (both spin - up), which violates the Pauli exclusion principle.

Answer:

D. 1s: ↑↓, 2s: ↑↑, 2p: ↑