Radioactive dating diagram
It can capture an electron or it can emit a positron.
(Only a handful of nuclides with atomic numbers less than 83 emit an -particle.) The product of -decay is easy to predict if we assume that both mass and charge are conserved in nuclear reactions.
Carbon-14 dating is a way of determining the age of certain archeological artifacts of a biological origin up to about 50,000 years old.
It is used in dating things such as bone, cloth, wood and plant fibers that were created in the relatively recent past by human activities.
The proton is the nucleus of ordinary hydrogen and is stable.
In alpha decay, an energetic helium ion (alpha particle) is ejected, leaving a daughter nucleus of atomic number two less than the parent and of atomic mass number four less than the parent.Beta radioactivity also produces the neutrino and antineutrino, particles that have no charge and very little mass, symbolized by ν and of the parent nucleus.