Palladium is a chemical element with the symbol Pd and atomic number 46. It is a rare and lustrous silvery-white metal discovered in 1803 by the English chemist William Hyde Wollaston.
source/image(PrtSc): Thoisoi2 – Chemical Experiments!
Hi everyone! In this video you will learn about such a metal as palladium and also about why it has disappointed me so much. In the periodic table of chemical elements palladium belongs to group 10 and is located right below nickel and is one of the platinum group of precious metals.
Since palladium is quite lowly active, pure form of this metal naturally occurs in platinum nuggets. However, such instances are quite rare that is why it is usually extracted as a byproduct from copper-nickel ores which are found in South Africa and Canada. Nowadays Russia is the largest producer of pure palladium, production of which takes place in the city of Norilsk.
Palladium belongs to group 10 in the periodic table, but the configuration in the outermost electrons is in accordance with Hund’s rule. Electrons that by the Madelung rule would be expected to occupy the 5s instead fill the 4d orbitals, as it is more energetically favorable to have a completely filled 4d10 shell instead of the 5s2 4d8 configuration.