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Radioactivity

AX+e- Æ AY+n Z K Z-1 e

TermDefinition
Electron Capture The nucleus captures one of its own K shell orbital electrons, a proton transforms into a neutron and a neutrino ne is ejected.
B+ decay A proton transforms into a neutron, and a positron b+ and neutrino ne, sharing the available energy, are ejected from the nucleus
B- decay A neutron transforms into a proton, and an electron b– and antineutrino n— , sharing the available energy, are ejected from the nucleus.
Alpha Decay radioactive decay of an atomic nucleus that is accompanied by the emission of an alpha particle. 2 4He
Atomic Number Z - number of protons and number of electrons in an atom.
Atomic Mass Number A - number of nucleons in an atom (i.e. number of protons Z plus number of neutrons N in an atom: A = Z + N).
Created by: Jshindler
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