Inombolo ye-athomu engu-46 ibhekisela enanini lamaphrothoni akhona ku-nucleus ye-athomu ye-chemical element palladium (Pd). Ngamanye amazwi, iyinkomba eyingqayizivele ye-palladium, njengoba kungekho enye into enamaphrothoni angu-46 ku-nucleus yayo. Inombolo ye-athomu iphinde inqume indawo ye-elementi kuthebula le-periodic futhi isetshenziselwa ukunquma ukumiswa kwe-elekthronikhi kanye nezici zamakhemikhali ze-elementi.