Ay the most stable arrangement of electrons in subshells is the one with the greatest W number of parallel spins(Hund's rule). 3d 45- 3s detadliouns 25 1232985 7.7C 6 electrons The most stable arrangement of electrons in subshells is the one with the greatest number of parallel spins (Hund’s rule). C 1s22s22p2 N 7 electrons N 1s22s22p3 O 8 electrons O 1s22s22p4 F 9 electrons F 1s22s22p5 Ne 10 electrons Ne 1s22s22p6 7.7