becquerel

views updated May 09 2018

becquerel(Bq) The SI unit of radioactivity, being the activity of a nuclide that decays with an average of one spontaneous transition per second. The unit is named after the French physicist Antoine Henri Becquerel (1852–1908).

becquerel

views updated May 18 2018

becquerel Symbol Bq. The SI unit of activity (see radiation units). The unit is named after the discoverer of radioactivity, A. H. Becquerel (1852–1908).

becquerel

views updated Jun 08 2018

becquerel (bek-er-el) n. the SI unit of activity of a radioactive source, being the activity of a radionuclide decaying at a rate of one spontaneous nuclear transition per second. It has replaced the curie. Symbol: Bq.