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 Form 4 Chemistry: Radioactivity Questions and Answers

Complete the nuclear equation below:
(a) Q23Radioactivity4272020457.png
(b) The half-life of #overset 131 53 I# is 8 days. Determine the mass of #overset 131 53 I# remaining if 50 grammes decayed for 40 days.
(c) Give one harmful effect of radioisotopes.

 (2m 41s)
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