Question

atomic numbers and electron configurations
quiz complete
1 2 3 4 5 6 7 8 9 10
which diagram shows a pair of electrons that have opposite spins?

Explanation:

opposite spins are shown by one upward-pointing arrow and one downward-pointing arrow in the same orbital, which matches the second option. The other options show either parallel spins or incorrect pairing.

Answer:

opposite spins are shown by one upward-pointing arrow and one downward-pointing arrow in the same orbital, which matches the second option. The other options show either parallel spins or incorrect pairing.