Online plutonium fission reaction, starting from U-238 through. series of beta emissions and neutron bombardments until plutonium is produced. Discuss that plutonium is a poison which attacks the nervous system system leading to paralysis and death. Write and discuss the nuclear reaction in which U-238 (stable) is transformed into U-239 (unstable) by neutron bombardment , and then transformed from U-239 into neptunium which is unstable.