Loading…
Loading…
GCSE Combined Science · key term
The unit of activity. An activity of 1 Bq means one nuclear decay per second.
Used by AQA and Edexcel
Specification 6.4.2.1 · Paper 5
Revise: Radioactive Decay and Radiation TypesThe activity of a radioactive source is the rate at which its unstable nuclei decay. Its unit is the becquerel, Bq. A source with an activity of 80 Bq undergoes 80 nuclear decays per second.
Paper 5, Paper 6
The unit of activity, symbol Bq. An activity of 1 Bq means one nuclear decay per second.
Revise: Activity and half-lifeActivity is measured in becquerels, symbol Bq: an activity of 800 Bq means that, on average, 800 nuclei decay each second.
Create a free account to read GCSE Combined Science revision notes for your exam board and track your progress.