which diagram shows electrons violating the pauli exclusion principle?
which diagram shows electrons violating the pauli exclusion principle?
Answer
Answer:
The second option (with all boxes having paired electrons: ↓↑ ↓↑ ↓↑)
Explanation:
Step1: Recall Pauli - exclusion principle
No two electrons in an atom can have the same set of four quantum numbers. In an orbital, it means an orbital can hold a maximum of 2 electrons with opposite spins.
Step2: Analyze options
The first option has unpaired electrons in separate orbitals which is allowed (Hund's rule). The third and fourth options have a mix of paired and unpaired electrons which is also allowed in the context of electron - filling rules. The second option has all orbitals filled with two electrons of the same spin in each orbital, violating the Pauli - exclusion principle as electrons in the same orbital must have opposite spins.