Half-Life 1 – Hollms School

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First	First	Last	Quiz Score Total	Question 1	Radioactive decay is a ............ process.	Scientists cannot predict when any ............ will decay.	Instead, scientists measure the ............ .	This is the time it takes for the number of undecayed nuclei in a sample to ............ .	The half-life is also the time taken for the ............ to fall to half its original level.	Quiz Percentage Grade
ppefmh	Ed	Garstin	1/5	1) Complete the following sentences by selecting the correct missing words?	halve random half-life count rate nucleus	halve random half-life count rate nucleus	halve random half-life count rate nucleus	halve random half-life count rate nucleus	halve random half-life count rate nucleus	20%
First	First	Last	Quiz Score Total	Question 1	Radioactive decay is a ............ process.	Scientists cannot predict when any ............ will decay.	Instead, scientists measure the ............ .	This is the time it takes for the number of undecayed nuclei in a sample to ............ .	The half-life is also the time taken for the ............ to fall to half its original level.	Quiz Percentage Grade