Question: Table 3 Time in minutes Count-rate in counts second 1568 30 X 60 The scientist realised that 30 minutes is a whole number of half-live:

Table 3 Time in minutes Count-rate in counts second 1568 30 X 60 The scientist realised that 30 minutes is a whole number of half-live: Calculate the value of X in Table S [3 marks] X = counts/second

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