Word: einsteinium
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Dates: during 1955-1955
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...which had 92 protons and 146 neutrons, turned into Element 99 with 99 protons and 154 neutrons. To form Element 100 (100 protons and 155 neutrons), the U-238 captured 17 neutrons and lost eight beta particles. The scientists suggested that Element 99 be named einsteinium, after Albert Einstein, and Element 100 fermium, after Enrico Fermi...
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