Diagram of the nuclear composition, electron configuration, and valence (outer electron) orbitals of an atom of meitnerium-276 (atomic number: 109), a
Diagram of the nuclear composition, electron configuration, and valence (outer electron) orbitals of an atom of meitnerium-276 (atomic number: 109), an isotope of this radioactive element. The nucleus consists of 109 protons (blue) and 167 neutrons (red). Meitnerium, named after Lise Meitner and first synthesised in 1982, is a transactinide of unknown properties in group 9, period 7, and the d-block of the periodic table. Meitnerium-276 has a half-life of seconds.
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Photo credit: © CARLOS CLARIVAN/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
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