Elevise
  • Home
  • GCSE Maths
  • Membership
Back to AQA CS Synergy Paper 1 Specimen (set 1) Home

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.
Picture
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]
Picture
11.3) Explain how ionising radiation can have hazardous effects on the human body. [5 marks]​

​​​​​​​(Total for Question 10 = 10 marks)
Show Answers
Home
GCSE Maths
Membership
UNITED KINGDOM
INFO@ELEVISE.CO.UK
  • Home
  • GCSE Maths
  • Membership