Cadmium can be a chemical component with symbol Cd and atomic amount 48. This gentle, bluish-white steel is chemically comparable to the two other stable metals in group 12, zinc and mercury.- Nh? t??ng u?ng: ch? du?ng các nh? t??ng ki?u D/N th??ng la? các potio nh? t??ng.  As such, It's a uncommon earth factor which happens to be associated wit