Skip to content
becquerel

File:Radium_226_radiation_source_1.jpg · Wikimedia Commons · See Wikimedia Commons

EntityQ102573· pop 76· linked from 462 articles

The becquerel (; symbol: Bq) is the unit of radioactivity in the International System of Units (SI). One becquerel is defined as an activity of one per second, on average, for aperiodic activity events referred to a radionuclide. For applications relating to human health this is a small quantity, and SI multiples of the unit are commonly used.

AI overview

A becquerel is the standard unit used to measure radioactivity, defined as one radioactive decay event occurring per second. It's a very small amount for practical purposes involving human health, so scientists typically use larger multiples of the unit instead.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Unit.name
becquerel
Unit.image
Radium 226 radiation source 1.jpg
Unit.caption
Radium-226 radiation source. Activity 3300 Bq (3.3 kBq)
Unit.standard
SI
Unit.quantity
activity
Unit.symbol
Bq
Unit.namedafter
Henri Becquerel
Unit.units1
rutherford
Unit.units2
curie
Unit.inunits2
Unit.units3
SI base unit
Unit.inunits3
s−1

via Wikipedia infobox

Wikidata facts

Image
Radioactivity and radiation-ca.svg
Show 5 more facts
Wikidata SPARQL query equivalent
wd:Q102573 p:P2370/psn:P2370 [wikibase:quantityAmount ?source; wikibase:quantityUnit ?base]. ?item p:P2370/psn:P2370 [wikibase:quantityAmount ?target; wikibase:quantityUnit ?base]. BIND(?source / ?target as ?value)
Commons category
Becquerel (unit)
inception
1975-00-00
unit symbol
Bq
conversion to SI unit
1
Sources (1)

via Wikidata · CC0

~4 min read

Article

8 sections
Contents
  • Definition
  • Unit capitalization and prefixes
  • Examples
  • Relation to the curie
  • Relation to other radiation-related quantities
  • See also
  • References
  • External links

The becquerel (; symbol: Bq) is the unit of radioactivity in the International System of Units (SI). One becquerel is defined as an activity of one per second, on average, for aperiodic activity events referred to a radionuclide. For applications relating to human health this is a small quantity, and SI multiples of the unit are commonly used.

The becquerel is named after Henri Becquerel, who shared a Nobel Prize in Physics with Pierre and Marie Curie in 1903 for their work in discovering radioactivity.

Gallery (5)

Connections

Categories