Chemical element whole number. For example, the relative atomic mass of chlorine is 35.453 u, which differs greatly from a whole number as it is an average of about 76% chlorine-35 and 24% chlorine-37. Whenever a relative atomic mass value differs by more than 1% from a whole number, it is due to this averaging effect, as significant amounts of more than one isotope are naturally present in a sample of that element. Chemists and nuclear scientists have different definitions of a "pure element". In chemistry, a pure element means a substance whose atoms all (or in practice almost all) have the
Shade, the Changing Man Seven, which includes Enchantress and Amethyst, Princess of Gemworld. Shade and the others are recruited by Cyborg as part of an effort to stop an apocalyptic war between Atlantis and New Themyscira. In October 2016, DC debuted a new imprint: Young Animal. One of the initial titles is "Shade, The Changing Girl", which features a female Metan named Loma who admires the late Rac Shade and his poetry. She steals the Madness Vest from a museum and takes over the body of a comatose teenage girl called Megan Boyer on Earth. The creative team behind this new version includes writer