Roentgenium, atomic structure

Roentgenium, atomic structure

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This image is part of the sequence science and technology: simple electron configurations of the elements

Credit: SCIENCE PHOTO LIBRARY

Caption: Roentgenium (Rg). Diagram of the nuclear composition and electron configuration of an atom of roentgenium-281 (atomic number: 111), the most stable isotope of this radioactive element. The nucleus consists of 111 protons (red) and 170 neutrons (blue). 111 electrons (green) bind to the nucleus, successively occupying available electron shells (rings). Named after Wilhelm Roentgen and first synthesised in 1994, this element is a transactinide of unknown properties in group 11, period 7, and the d-block of the periodic table. Roentgenium-281 has a half-life of 26 seconds, its nucleus undergoing spontaneous fission.

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Keywords: atom, atomic, chemical properties, chemical property, chemistry, d block, d-block, diagram, electron configuration, electron shell, electronic, electrons, element, elemental, elements, group 11, illustration, isotope, level, levels, neutron, neutrons, nuclear, nucleon, nucleons, nucleus, orbital, orbitals, period 7, physical chemistry, physical properties, physical property, radioactive, radioisotope, radioisotopes, rg, roentgenium, roentgenium-281, shell, shells, simple electron configuration, solid, solids, structural, structure, sub-atomic, subatomic, subshell, subshells, super heavy, super-heavy, superheavy, trans-actinide, trans-actinides, trans-uranic, trans-uranics, transactinide, transactinides, transuranic, transuranics, transuranium, unknown properties, white background

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