You have a salt of the form where element X is a well-known, soft metal, grayish, with a unique oxidation number of +2 and common in living bones. For
On the other hand, element Y has a mass percentage of 19.97% in said salt.
to. Using this information, determine the identities of elements X and Y.
b. Write the electron configurations of each element, indicating whether it is
paramagnetic or diamagnetic.