Beta decay - Wikipedia
网页In nuclear physics, beta decay (β-decay) is a type of radioactive decay in which an atomic nucleus emits a beta particle (fast energetic electron or positron), transforming into an isobar of that nuclide.
Beta Decay - Definition, Examples, Types, Fermi’s Theory of Beta Decay
网页Beta decay is a radioactive decay in which a beta ray is emitted from an atomic nucleus. During beta decay, the proton in the nucleus is transformed into a neutron and vice versa. If a proton is converted to a neutron, it is known as β + decay.
7.2: Beta Decay - Physics LibreTexts
网页The beta decay is a radioactive decay in which a proton in a nucleus is converted into a neutron (or vice-versa). In the process the nucleus emits a beta particle (either an electron or a positron) and quasi-massless particle, the neutrino. Recall the mass chain and Beta decay plots of Fig. 7.
Beta decay | Definition, Examples, & Facts | Britannica
网页beta decay, any of three processes of radioactive disintegration by which some unstable atomic nuclei spontaneously dissipate excess energy and undergo a change of one unit of positive charge without any change in mass number.
17.3: Types of Radioactivity- Alpha, Beta, and Gamma Decay
网页2022年9月16日 · Alpha decay - A common mode of radioactive decay in which a nucleus emits an alpha particle (a helium-4 nucleus). Beta decay - A common mode of radioactive decay in which a nucleus emits beta particles. The daughter nucleus will have a higher atomic number than the original nucleus.
Beta Decay - Chemistry - Socratic
网页In Beta decay, a high-energy electron (called a beta particle) is emitted from a neutron in the nucleus of a radioactive atom. That neutron may be thought of as a combination of a beta particle (negative charge) with a proton (positive charge).
DOE Explains...Beta Decay | Department of Energy
网页Beta decay is the most common form of radioactive decay. It happens in one of two ways. In one type of beta decay, an unstable atomic nucleus emits an electron and an antineutrino while converting a neutron to a proton.
21.3: Radioactive Decay - Chemistry LibreTexts
网页2022年10月27日 · Beta decay, which can be thought of as the conversion of a neutron into a proton and a β particle, is observed in nuclides with a large n:p ratio. The beta particle (electron) emitted is from the atomic nucleus and is …
Beta Decay Definition and Examples - Science Notes and Projects
网页2022年7月3日 · Beta decay is a type of radioactive decay that releases an energic electron or positron (the antimatter version of an electron). The process occurs when an atomic nucleus is unstable because it has too many protons or neutrons. In beta minus decay (β −), a neutron decays into a proton, an antineutrino, and an electron.
Radioactivity - Beta Decay, Nuclear Reactions, Radiation
网页2024年8月16日 · The first quantitative rate theory of beta decay was given by Enrico Fermi in 1934, and the essentials of this theory form the basis of modern theory. As an example, in the simplest beta-decay process, a free neutron decays into a proton, a negative electron, and an antineutrino: n → p + e − + ν.