Card 1 of 20
Activity is the number of nuclei that [ ]. Its unit is the becquerel, Bq.
A
Each half-life removes the same fraction of what remains.
B
Half-life is the time for half the undecayed nuclei to decay, or for the activity to fall by half.
C
It does not alter each nucleus's fixed decay probability.
D
Activity is the number of nuclei that decay each second. Its unit is the becquerel, Bq.
Card 1 of 20
6.4 Half-life Flashcards
20 flashcards on Edexcel GCSE Physics 6.4 Half-life: the key terms, definitions and equations you need to recall for Paper 1 and Paper 2.