Atomic Numbers and Electron Configurations Answers

Potassium (K): 1s22s22p63s23p64s1

Iron (Fe): [Ar]4s23d6

Argon (Ar): [Ne]3s23p6

Magnesium (Mg): 1s22s22p63s2

Argon (Ar): [Ne]3s23p6 core electrons

valence electrons

Magnesium (Mg): 1s22s22p63s2 core electrons

valence electrons