Becquerel: the SI unit of radioactivity Becquerel The becquerel (Bq) is the SI derived unit of radioactivity, defined as one nuclear decay per second. This article explains its meaning, relation to decay laws, multiples, uses, mea…
Beta particle (β): electrons and positrons emitted in radioactive decay Beta particle Beta particles are high-speed electrons or positrons produced by nuclear beta decay. They are a type of ionizing radiation with characteristic interactions, detection methods, shie…
Radiometric dating Techniques that determine the age of materials by measuring radioactive isotopes and their decay products. Widely used in geology, archaeology and planetary science.
Uranium–lead dating (U–Pb): principles, methods, and applications Uranium-lead dating Uranium–lead dating uses decay of 238U and 235U to lead isotopes to determine geologic ages from ~1 million to >4.5 billion years with high precision; widely applied to zircon and…
