It also tells us that chlorine has 18 neutrons (35 - 17) and, as the number of electrons and protons are equal in a neutral atom ... can collide with fresh uranium nuclei, they need to be slowed ...

From there, Meitner and her nephew Otto Frisch proved that the uranium atom had been split ... Using Bohr's liquid drop model of the nucleus, they suggested that when split, both halves of ...

They have discovered that uranium nuclei are far from the simple ... the central core of an atom, plays a crucial role in ...

Heavy water can help keep such a chain reaction going. As each uranium atom breaks apart, it shoots out neutrons that can go on to split other atoms. But the neutrons are much more likely to ...