random decay
What random decay means in Physics GCSE, as defined for AQA.
Definition of random decay
Check what you remember
Read the wording for your board, then hide it and explain random decay in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
You cannot predict which nucleus in a sample will decay next, and you cannot predict when any particular nucleus will decay.
Topics that use random decay
Related terms
- background correction
- constant chance of decay
- fraction not number
- net decline as a ratio
- steepest curve
- why activity falls
- dice model
- halving chains
Using random decay in the exam
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