出典:Wikipedia
出典:『Wikipedia』 (2011/07/14 06:21 UTC 版)
A group 12 element is one of the elements in group 12 (IUPAC style) in the periodic table. This includes zinc (Zn), cadmium (Cd) and mercury (Hg). The further inclusion of copernicium (Cn) in group 12 is supported by recent experiments on individual Cn atoms. Although this group lies in the d-block of the periodic table it is not considered to be a part of the transition metals as the elements in this group have a filled d-dubshell.