BRAINCAKE

Decay Constant

Edexcel A-level PhysicsRadioactivityLesson 14 of 25

The decay constant λ is the probability of an individual nucleus decaying per second.

The half-life is related to the decay constant.

t½ = ln 2 / λ
Diagram

Sign in free to see the rest of this lesson, the R.E.C.I.P.E. recall steps and the quiz

BrainCake is free. Make an account in seconds and pick up where this page stops.

More in Radioactivity

All 25 lessons in Radioactivity · All Edexcel A-level Physics topics