Recently (in Aug 2003) two new elements have been discovered with atomic number:
A
113,114
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B
114,115
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C
115,116
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D
113,115
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Solution
The correct option is C113,115 Two superheavy elements, elements 113 and 115, were recently synthesized through a collaborative effort between scientists from the Physical and Life Sciences Directorate at the Lawrence Livermore National Laboratory and researchers from the Joint Institute for Nuclear Research at the Flerov Laboratory for Nuclear Reactions in Dubna, Russia.