Too Long; Didn't Read
Worlds Within Worlds: The Story of Nuclear Energy, Volume 3 (of 3), by Isaac Asimov is part of HackerNoon’s Book Blog Post series. In 1934 Enrico Fermi bombarded uranium with neutrons in the hope of obtaining atoms of element 93. Uranium had the highest atomic number in the entire scale. Element 93 is therefore called Uranium ‘ununptneum’ and Uranium is now the new element beyond Uranus. In 1939 the American physicists Edwin Matt and Philip Hauge were able to identify element 93 after bombarding uranium with slow neutrons.