ABSTRACT
This is not unusual because Y does not belong to the lanthanum series and its atoms have
a lower number of electron shells than G d atoms.
Unl ike Y , the solubility of Sc in solid M g follows its metallic radius. The metallic
radius of Sc and its solubility differ significantly from all other rare earth metals and,
therefore, the possibility of Sc atoms changing somewhat in size after dissolution in M g
seems not to matter for its place in the general dependence of the solubility on the metallic
radius.
