becquerel
Definition
- Noun:
- The SI derived unit of radioactivity: A "becquerel" is the unit of measurement for radioactive decay, defined as one disintegration per second.
- A person (Antoine Henri Becquerel): "Becquerel" can also refer to the French physicist who discovered radioactivity.
Examples of Usage
- Noun (Unit):
- The sample's activity was measured at 5,000 becquerels.
- Regulations limit the becquerel content in drinking water.
- Noun (Person):
- Becquerel shared the 1903 Nobel Prize in Physics with the Curies.
Advanced Usage
- "Becquerel per kilogram (Bq/kg)": A common unit for measuring the specific activity (radioactivity per unit mass) of a substance.
- The soil contamination was reported as 200 becquerels per kilogram.
Variants and Related Words
- Curie (Ci): A non-SI unit of radioactivity, where 1 curie equals 3.7 × 10¹⁰ becquerels.
- Radioactivity (n): The spontaneous emission of radiation from an unstable atomic nucleus.
- Disintegration (n): The process by which an atomic nucleus loses energy by emitting radiation; one such event equals one becquerel.
Synonyms
- Bq (abbreviation): The standard symbol for the becquerel unit.
Related Phrases
- Becquerel rays: An archaic term for the radiation discovered by Antoine Becquerel, now understood as a mix of alpha, beta, and gamma radiation.
- Early experiments with becquerel rays led to the discovery of radioactivity.
Noun
-
French physicist who discovered that rays emitted by uranium salts affect photographic plates (1852-1908)
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