Abstract: | A systematic investigation of momentum densities Π (p), Compton profiles J (q), and internally folded densities B (r) has been made for the ground states of the atoms from H to Kr. The data are presented in reduced form by means of the characteristic momentum p* = q* and length r* = 1/p*, where p* = J (0)/2πΠ (0)]½. The results indicate that p* and J (0) contain the gross qualitative behavior of the atomic properties in momentum space. They also show that subtle effects over and above the gross scale and size are mostly periodic. |