Platinum bluish-white lustrous metal that is very malleable and ductile Platinum group metals They have similar physical and chemical properties and tent tot occur together in the same mineral deposits rhodium, ruthenium, palladium, palladium, platinum, osmmium, iridium Uses of PGMs (pt) in the manufacture of jewelry because of its attractive appearance and anti-cancer properties used for thermocouples when alloyed with iridium and rhodium (Pt) is used on fuel cells( it is very unreactive) used to make spark plugs (pt) as a catalyst with rhodium, in catalytic converters of car exhausts Pt(ii) complexes are used to prepare anti-cancer drugs in chemotherapy eg cis-platin