Paper 1 H - SAMPLE SET 1 Q11
11) Figure 11 shows how the activity of a radioactive isotope changes over an 8 hour period of time.
11.1) Predict how long it will take for the count rate to fall from 100 to 1.56 Bequerels. [2 marks]
Time = __________ hours
11.2) Lead-210 is a radioactive isotope that decays to an isotope of mercury by alpha decay.
Complete the nuclear equation to show the alpha decay of lead-210. [3 marks]
Complete the nuclear equation to show the alpha decay of lead-210. [3 marks]
11.3) Explain how ionising radiation can have hazardous effects on the human body. [5 marks]
(Total for Question 10 = 10 marks)
(Total for Question 10 = 10 marks)