atomic number 113

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Noun1.atomic number 113 - a radioactive transuranic element
chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
References in periodicals archive ?
Atomic number 113 was found by a group at the RIKEN Nishina Center for Accelerator-based Science in Japan, while the identification of atomic number 115, 117 and 118 represented almost a decade's worth of collaboration between researchers at Russian's Joint Institute for Nuclear Research, Lawrence Livermore National Laboratory in California and Oak Ridge National Laboratory in Tennessee.