beta-radioactive substance

См. также в других словарях:

• beta emitter — beta emitter, a radioactive substance which gives off beta rays …   Useful english dictionary

• Radioactive decay — For particle decay in a more general context, see Particle decay. For more information on hazards of various kinds of radiation from decay, see Ionizing radiation. Radioactive redirects here. For other uses, see Radioactive (disambiguation).… …   Wikipedia

• Radioactive waste — 2007 ISO radioactivity danger logo, designed in part for long term radioactive waste depositories which might survive into a far future time in which all knowledge of the meaning of present common radiation danger symbols and signs has been lost… …   Wikipedia

• radioactive decay — noun the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation • Syn: ↑decay, ↑disintegration • Derivationally related forms: ↑disintegrate (for: ↑disintegration), ↑decay ( …   Useful english dictionary

• radioactive series — noun : a series of elements that are formed by disintegration of a long lived parent (as actinium, thorium, or uranium) through the successive loss of alpha or beta particles sometimes by alternative routes and that are all radioactive except the …   Useful english dictionary

• beta emitter — noun A radioactive substance emitting beta particles …   Wiktionary

• Matière radioactive — Radioactivité Pour les articles homonymes, voir Radio. Symbole signalant une source de rayons ionisants, ☢. La radioactivité, phénomène qui fut dé …   Wikipédia en Français

• radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …   Universalium

• List of fictional elements, materials, isotopes and atomic particles — This list contains chemical elements, materials, isotopes or (sub)atomic particle that exist primarily in works of fiction (usually fantasy or science fiction). No actual periodic elements end in ite , though many minerals have names with this… …   Wikipedia

• Nuclear chemistry — is the subfield of chemistry dealing with radioactivity, nuclear processes and nuclear properties. It is the chemistry of radioactive elements such as the actinides, radium and radon together with the chemistry associated with equipment (such as… …   Wikipedia

• Radiation poisoning — Radiation poisoning, also called radiation sickness or a creeping dose , is a form of damage to organ tissue due to excessive exposure to ionizing radiation. The term is generally used to refer to acute problems caused by a large dosage of… …   Wikipedia