Complex sentence: The 4 Cl-atoms contribute a total of 24 valence electrons and the Pd 2 + atom has 8 valence electrons in its d orbitals and therefore, the (PdCl 4) 2-molecule has 32 valence electrons total.
Split into simpler sentences: The 4 Cl-atoms contribute a total of 24 valence electrons and the Pd 2 + atom has 8 valence electrons in its d orbitals. The (PdCl 4) 2-molecule has 32 valence electrons total.