Name : Yttrium Symbol : Y Atomic # : 39 Atom weight: 88.906 Melting P. : 1522 Boiling P. : 5338 Oxidation : +3 Pronounced : IT-ri-em From : Swedish village, Ytterby Identified : Johan Gadolin in 1789 Appearance : Silvery, ductile, fairly reactive metal Note : A rare-earth metal [Properties] Yttrium is a silvery, ductile metal. Powdered samples burn easily, and thin turnings of the metal from metalworking lathes have been known to ignite spontaneously. Yttrium is a Group-IIIB element. Among other things, this means it is a fairly active and moderately lightweight rare-earth metal. Some chemists still argue that scandium (Sc) is not a rare-earth element and that yttrium is the first on the table and the lightest of all the rare earths.