a zinc beam consisting of 30 protons and 40 neutrons was used to bombard lead target nuclei, composed of 82 protons and 126 neutrons, resulting in a new element that had 112 protons and 166 ...

Bismuth, the 83rd element in the periodic table, has been known since ancient times, but was often confused with lead and tin. In 1753, Claude François Geoffroy from France demonstrated that ...