10.1 Predict the number of unpaired electrons for each of the
following:
a. a tetrahedral d^(6) ion
b. [Co(H_(2)O)_(6)]^(2+)
c. [Cr(H_(2)O)_(6)]^(3+)
d. a square-planar d^(7) ion
e. a coordination compound with a magnetic moment of
5.1 Bohr magnetons