Difference between revisions of "Beta-Minus Radiation"
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==Key Stage 5== | ==Key Stage 5== | ||
===Meaning=== | ===Meaning=== | ||
| − | [[Beta-Minus Radiation|Beta-minus radiation]] consists of [[electron]]s (β⁻) [[emit]]ted by [[Unstable | + | [[Beta-Minus Radiation|Beta-minus radiation]] consists of [[electron]]s (β⁻) [[emit]]ted by [[Unstable Isotope|unstable]] [[Neutron-rich Nucleus|neutron-rich]] [[Atomic Nucleus|nuclei]]. |
===About Beta-Minus Radiation=== | ===About Beta-Minus Radiation=== | ||
| − | + | *[[Beta-Minus Radiation|Beta-minus]] [[particle]]s are high-energy, high-speed [[electron]]s. | |
*Stopped by about 5 mm of [[aluminium]]. | *Stopped by about 5 mm of [[aluminium]]. | ||
*Has a range in air of up to a [[metre]]. | *Has a range in air of up to a [[metre]]. | ||
*Less ionizing than [[Alpha Radiation|alpha radiation]] but more ionizing than [[Gamma Radiation|gamma radiation]]. | *Less ionizing than [[Alpha Radiation|alpha radiation]] but more ionizing than [[Gamma Radiation|gamma radiation]]. | ||
| − | * | + | *[[Beta-Minus Radiation|Beta-Minus radiation]] is [[emit]]ted during beta-minus decay when a [[neutron]] [[Transmutation|transmutes]] into a [[proton]], [[electron]], and [[antineutrino]]. |
| + | *[[Beta-Minus Radiation|Beta-minus radiation]] is used in medical applications and radiometric dating. | ||
| + | |||
===Examples=== | ===Examples=== | ||
| − | + | *The [[Radioactive Decay|decay]] of [[carbon-14]] to [[nitrogen]]-14 [[emit]]s [[Beta-Minus Radiation|beta-minus particle]]s. | |
| − | * | ||
*Employed in the study of [[Beta Decay|beta decay]] processes in [[Nuclear Physics|nuclear physics]]. | *Employed in the study of [[Beta Decay|beta decay]] processes in [[Nuclear Physics|nuclear physics]]. | ||
Latest revision as of 12:37, 22 May 2024
Key Stage 5
Meaning
Beta-minus radiation consists of electrons (β⁻) emitted by unstable neutron-rich nuclei.
About Beta-Minus Radiation
- Beta-minus particles are high-energy, high-speed electrons.
- Stopped by about 5 mm of aluminium.
- Has a range in air of up to a metre.
- Less ionizing than alpha radiation but more ionizing than gamma radiation.
- Beta-Minus radiation is emitted during beta-minus decay when a neutron transmutes into a proton, electron, and antineutrino.
- Beta-minus radiation is used in medical applications and radiometric dating.
Examples
- The decay of carbon-14 to nitrogen-14 emits beta-minus particles.
- Employed in the study of beta decay processes in nuclear physics.