Group 11 element Group 11 element Group 11, by modern IUPAC numbering, is a group of chemical elements in the periodic table, consisting of copper (Cu), silver (Ag), and gold (Au). Roentgenium (Rg) is also placed in this group in the periodic table, although no chemical experiments have yet been carried out to confirm that it behaves like the heavier homologue to gold. Group 11 is also known as the "coinage metals", due to their former usage. They were most likely the first three elements discovered. Copper, silver, and gold all occur naturally in elemental form. All the elements of the group except
CU-SeeMe in the Radvision Scopia product line. There is still a small but active community of users of the original CU-SeeMe releases. Although there have been no releases of software from the various incarnations of White Pine since roughly 2000, freeware alternatives are available for both the Windows and Macintosh platform. The CU-SeeMe name and legacy remains important for a number of reasons: CU-SeeMe CU-SeeMe (also written as CUseeMe or CUSeeMe depending on the source) is an Internet videoconferencing client. CU-SeeMe can make point to point video calls without a server or make multi-point calls through server software first called a