Ƙarfan rukunin Platinum sun haɗa da platinum (Pt), rhodium (Rh), palladium (Pd), ruthenium (Ru), osmium (Os), da iridium (Ir), waɗanda ke cikin ƙarfe masu daraja kamar zinariya (Au) da azurfa (Ag) . Suna da ƙaƙƙarfan igiyoyin atomic masu ƙarfi, don haka suna da babban ƙarfin haɗin gwiwar interatomic da matsakaicin girma mai yawa. Atom...
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