Start Who discoverd radioactive dating

Who discoverd radioactive dating

Unstable atomic nuclei will spontaneously decompose to form nuclei with higher stability. The energy and particles which are released during the decomposition process are called radiation.

Alpha and beta emission are often accompanied by gamma emission, as an excited nucleus drops to a lower and more stable energy state.

Alpha, beta, and gamma radiation also accompany induced radioactivity.

In one of his experiments, Lavoisier used a magnifying glass to focus the sun's rays on a diamond and saw the diamond burn and disappear.

For example: Gamma rays are high-energy photons with a very short wavelength (0.0005 to 0.1 nm).

When the unstable nuclei are prepared in the laboratory, the decomposition is called induced radioactivity.

Alpha radiation consists of a stream of positively charged particles, called alpha particles, which have an atomic mass of 4 and a charge of 2 (a helium nucleus).

When an alpha particle is ejected from a nucleus, the mass number of the nucleus decreases by four units and the atomic number decreases by two units.