chemactivity 9 shell model answers
is written using numbers and letters, indicating the energy level, subshell, and number of electrons. Example: Carbon (Atomic number 6) electron configuration: 1s² 2s² 2p² Common Shell Model Answers: For sodium (Na, atomic number 11): 2, 8, 1 For chlorine (Cl, atomic number 17): 2, 8, 7