Group 11 element can also lead to the accumulation of these metals in body tissue; the results are the irreversible but apparently harmless pigmentation conditions known as chrysiasis and argyria respectively. Due to being short lived and radioactive, roentgenium has no biological use but it is likely extremely harmful due to its radioactivity. 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
Naming of chemical elements names can refer to: Chemical elements are sometimes named after people, especially the synthetic elements discovered (created) after ca. 1940. However, very few are named after their discoverers, and even fewer are named after living people. The element seaborgium is named after Glenn Seaborg, who was alive at the time; and oganesson is named after Yuri Oganessian (still living ). Many of the transuranic elements are named after recipients of the Nobel Prize, including: Transuranic elements named in honour of scientists who did not receive the prize include: The transuranic element americium is indirectly named (via the continents The Americas)