*<Tab/>Name: nickel *<Tab/>Symbol: Ni *<Tab/>Atomic number: 28 *<Tab/>Atomic weight: 58.6934 (2) Minerals containing nickel were of value for colouring glass green. The mineral used for colouring glass was called kupfernickel (false copper). Nickel was discovered by Baron Axel Frederik Cronstedt in 1751 in a mineral called niccolite. Apparently, he had expected to extract copper from this mineral but got …showed first 75 words of 1295 total…

…showed last 75 words of 1295 total…amp;lt;Tab/>Lise Meitner, Hahn, Strassman Conducted experiments verifying that heavy elements capture neutrons and form unstable products which undergo fission. This process ejects more neutrons continuing the fission chain reaction. 1941 - 51<Tab/>Glenn Seaborg Synthesized 6 transuranium elements and suggested a change in the layout of the periodic table. 1942<Tab/>Enrico Fermi Conducted the first controlled chain reaction releasing energy from the atoms nucleus.