Explanation:


A coordination compound is a compound in which a central metal ion is surrounded by ligands that donate electrons to the central metal ion to form a complex ion. In order to determine the oxidation number of the central metal ion, we need to know the charge on the ligands and the overall charge of the complex ion.

Empirical formula PdF3:


The empirical formula PdF3 indicates that the complex ion contains one central Pd ion and three F ions. The charge on each F ion is -1 because it is a halogen, and the overall charge on the complex ion is not given. Therefore, we cannot determine the oxidation number of the central Pd ion just from the empirical formula.

Determining the oxidation number:


To determine the oxidation number of the central Pd ion, we need to use the fact that the overall charge of the complex ion is neutral. Since each F ion has a charge of -1, the three F ions have a total charge of -3. Therefore, the central Pd ion must have a charge of +3 to balance out the negative charge of the F ions.

However, Pd is a transition metal and can have variable oxidation states. In order to confirm the oxidation state of Pd, we need to know the charge on the ligands. F is a highly electronegative element and is a strong donor. Therefore, we can assume that each F ion donates its lone pair of electrons to the central Pd ion. Since there are three F ions, they donate a total of six electrons to the central Pd ion.

The coordination number of Pd is 6 in this case. Therefore, the oxidation state of Pd can be determined using the following formula:
Oxidation state of Pd = Total number of electrons donated by ligands - Charge on the complex ion

Plugging in the values, we get:
Oxidation state of Pd = 6 - (-3) = +9

However, the maximum oxidation state of Pd is +4. Therefore, the oxidation state of Pd in this complex ion must be +4.

Answer:


The oxidation number of the central Pd atom in the coordination compound with empirical formula PdF3 is +4.

The oxidation number of an atom is the charge that would exist on the atom if the bonding were completely ionic.

In simple ions, the oxidation number of the atom is the charge on the ion.

In a molecule or compound, the oxidation number is the sum of the oxidation numbers of its constituent atoms