posted by Kimora .
Confirm that the experimentally observed electronic configuration of K, 1s22s22p63s23p64s1 is energetically more stable than the configuration 1s22s22p63s23p63d1.
i know that it is energetically more stable for the electron to occupy the 4s orbital than the 3d.. but why?
Potassium (chem) -
Retyped and answered above.