decay by positron emission
61Yttrium — (pronEng|ˈɪtriəm) is a chemical element with symbol Y and atomic number 39. It is a silvery metallic transition metal chemically similar to the lanthanoids and has historically been classified as a rare earth element. Yttrium is almost always… …
62Supernova nucleosynthesis — is the production of new chemical elements inside supernovae. It occurs primarily due to explosive nucleosynthesis during explosive oxygen burning and silicon burning.[1] Those fusion reactions create the elements silicon, sulfur, chlorine, argon …
63Nuclear fission product — Nuclear fission products are the atomic fragments left after a large atomic nucleus fissions. Typically, a large nucleus like that of uranium fissions by splitting into two smaller nuclei, along with a few neutrons and a large release of energy… …
64Niobium — zirconium ← niobium → molybdenum V ↑ Nb ↓ Ta …
65Radiometric dating — (often called radioactive dating) is a technique used to date materials such as rocks, usually based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates.[1]… …
66Radioactive waste — 2007 ISO radioactivity danger logo, designed in part for long term radioactive waste depositories which might survive into a far future time in which all knowledge of the meaning of present common radiation danger symbols and signs has been lost… …
67Copper-64 — 64Cu ATSM – copper (II) (diacetyl bis (N4 methylthiosemicarbazone)) – is being studied as a possible cancer therapy. Copper 64 is a radioactive nuclide of copper which has unique decay properties making it useful in nuclear medicine for both… …
68Iridium — (pronEng|ɪˈrɪdiəm) is a chemical element that has the symbol Ir and atomic number 77. A very hard, brittle, silvery white transition metal of the platinum family, iridium is the second densest element and is the most corrosion resistant metal,… …
69Lung cancer — Classification and external resources Cross section of a human lung. The white area in the upper lobe is cancer; the black areas are discoloration due to smoking. ICD 10 C …
70Binding energy — Nuclear physics Radioactive decay Nuclear fission Nuclear fusion Classical decays …
