palladium4dYes, Palladium is a transition metal because it has incompletely filled d-orbital in its most common oxidation state (Pd 2+).. Let me explain the exact meaning of this. According toThe atomic number is the number of electrons in that element. The atomic number of palladium is 46. That is, the number of electrons in palladium is forty-six. Therefore, a palladium atom will