Chemical element same atomic number, or number of protons. Nuclear scientists, however, define a pure element as one that consists of only one stable isotope. For example, a copper wire is 99.99% chemically pure if 99.99% of its atoms are copper, with 29 protons each. However it is not isotopically pure since ordinary copper consists of two stable isotopes, 69% Cu and 31% Cu, with different numbers of neutrons. However, a pure gold ingot would be both chemically and isotopically pure, since ordinary gold consists only of one isotope, Au. Atoms of chemically pure elements may bond to each other chemically in
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)