Palladium

In nature, palladium is found in the Earth's crust, 0.001-0.01 ppm, as alloy with platinum or gold, as a selenide in nickel sulfide ores and in minerals such as stibiopallandite, braggite and porpezite [5]. The isotopes found in nature are ¹⁰²Pd (1.0 %, stable), ¹⁰⁴Pd (11.0 %, stable), ¹⁰⁵Pd (22.2 %, stable), ¹⁰⁶Pd (27.3 %, stable), ¹⁰⁸Pd (26.7 %, stable) and ¹¹⁰Pd (11.8 %, stable) [5].

In pure solid form, palladium exist in face-centered cubic crystal structure [5]