Interactive periodic and isotope table
This page shows an interactive periodic and isotope table. Use the mouse to navigate the isotope table and display detailed element/radioactive decay information. Click to lock to a specific element, click again to lock to the isotope to make navigation easier. All of the data is parsed from Wikipedia; accuracy not guaranteed.
Alpha decay, the emission of a helium nucleus. Reduces the atomic number by two and mass number by four.
Beta decay, in which an electron and neutrino are emitted. Leads to the conversion of a neutron into a proton.
Positron emission, like beta decay, but with the emission of a positron (anti-electron). A neutron is converted into a proton.
Electron capture. An inner-shell electron is captured by a proton in the nucleus, forming a neutron and neutrino.
Proton emission. A proton is emitted from the nucleus with no other change. Only occurs in very proton-rich nucleii.
Neutron emission. A neutron is emitted from the nucleus.
Spontaneous fission. Only occurs in very heavy elements, which can split into two lighter nucleii, and emit neutrons.
Cluster decay is somewhat between alpha decay and fission. Occurs when a nucleus splits into two smaller nucleii with significantly different masses, such as 223-Ra to 14-C + 209-Pb.