becquerel

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becquerel

Henri Becquerel conducted experiments with uranium salts and photographic plates.

Definition
  1. 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.
becquerel

Henri Becquerel conducted experiments with uranium salts and photographic plates.

Noun
  1. French physicist who discovered that rays emitted by uranium salts affect photographic plates (1852-1908)

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