GENERAL GEOLOGY

Detailed explanation-1: -The decaying nucleus is called the parent radionuclide (or parent radioisotope), and the process produces at least one daughter nuclide.

Detailed explanation-2: -Parent: the original unstable radioactive isotope. Daughter: the new isotope formed as a result of radioactive decay of parent.

Detailed explanation-3: -When it decays, a radionuclide transforms into a different atom-a decay product. The atoms keep transforming to new decay products until they reach a stable state and are no longer radioactive. The majority of radionuclides only decay once before becoming stable.

Detailed explanation-4: -The unstable isotopes change over time into more stable isotopes, in a process called radioactive decay. The original unstable isotope is called the parent isotope, and the more stable form is called the daughter isotope. Isotopes decay at an exponential rate that that can be described in terms of half-life.

Detailed explanation-5: -The most common type is beta (−) decay in which a beta particle, which is an energetic electron, is ejected from the nucleus. The − particle is created by the breakup of a neutron into a proton, the − particle, and an antineutrino.