Note that the mass numbers and atomic numbers are equal (i.e. they balance) on both sides of the equation. An unstable nucleus can emit a fast-moving electron called a beta (β) particle ...

The 5014iQ and 5030iQ monitors from Thermo Fisher deliver accurate particulate measurements, enhancing air quality management ...

Neutrino: A subatomic particle with a very small mass and no electric charge, which interacts only via the weak nuclear force. Tritium Beta Decay: A type of radioactive decay in which a tritium ...

When a radioactive atom emits an alpha particle the mass number decreases by four and the atomic number drops by two. Here is the equation for the alpha decay of radon-219 into polonium.