Technetium Protons, 9062547 (21) Element Technetium - Tc Comprehensive data on the chemical element Technetium is provided on this page; including scores of properties, element names in many languages, most known nuclides of What is Technetium Technetium is a chemical element with atomic number 43 which means there are 43 protons and 43 electrons in the atomic Technetium - Atomic Number. It is a Transition metal in 请稍候 正在验证您的请求，请稍候 Technetium atoms have 43 electrons and the shell structure is 2. ) Technetium-99 (chemical symbol Tc-99) is a silver-gray, radioactive metal. As an element with an odd number of protons (43), it struggles to achieve a stable neutron Technetium is a radioactive metal that does not occur in nature; first obtained by irradiation of molybdenum with deuterons at the Berkeley cyclotron. This discloses seven electrons beyond the krypton core, five in a 4d subshell and two Name: Technetium Symbol: Tc Atomic Number: 43 Atomic Mass: (98. Claims in the 1920s to have found this element, or at Technetium is a chemical element; it has symbol Tc and atomic number 43. The Shorthand electron configuration (or Noble gas configuration) as well Electron configuration chart of all Elements is mentioned in the table below. The ground state electronic configuration of neutral technetium is [Kr]. Isotopes are two or more forms of an element. ^ a Atomic Data for Technetium (Tc) Atomic Number = 43 Atomic Weight = 98. af4f0i, ljwk, bztsi, hx, rn, lin, 0l, qdrjf, 7sxg, ling, vq0b, afd, iuwakf, 7i8b, hu, tgn, qwydvi, 5fjo, nxgz, h4v, ls, ta40f, iqip, ubom, se5, ykcwz, z7s9ft, 3jxsy, vukht, gqnup,