Artificial production of radioactive elements 1934.
Mould
Richard F
RF
D000512:Alpha Particles; D001895:Boron; D004583:Electrons; D049673:History, 20th Century; D009502:Neutrons; D009587:Nitrogen Isotopes; D011868:Radioisotopes / Q000737:chemistry* / Q000266:history
D009587:Nitrogen Isotopes; D011868:Radioisotopes; D001895:Boron