3 subatomic particles in the nucleus
which is proton(24),neutron (28) and electrons(24)
An atom hopefully this helps
Carbon-14 is a radioactive isotope used to date organic material. Its consistent rate of decay allows the age of an object to be determined by the proportion of carbon-14 to other carbon isotopes. This process is called radiocarbon dating. Carbon-14 is also used as a radioactive tracer for medical tests.
