- B Radon Rn Is A Radioactive Colourless Odourless Tasteless Noble Gas That Accounts For More Than Half Of The Tota 1 (32.17 KiB) Viewed 41 times
(b) Radon (Rn) is a radioactive, colourless, odourless, tasteless noble gas that accounts for more than half of the tota
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(b) Radon (Rn) is a radioactive, colourless, odourless, tasteless noble gas that accounts for more than half of the tota
(b) Radon (Rn) is a radioactive, colourless, odourless, tasteless noble gas that accounts for more than half of the total radiation dose received by the Irish population. Radon-222 has a half-life of 3.8 days and the activity of 1 g is 3.7 x 100 Bq. (1) Radon-222 undergoes alpha decay. Show the decay equation for this including atomic number, mass and element symbols in your answer. (4 marks) 222 Rn 86 2 H + Ra 226 35 (3 marks) (ii) Calculate the decay constant for Radon-222. 1.2.1x10" (ili) Calculate the number of Radon-222 atoms present in 1g. (3 marks) (c) Radon-222 has been linked with lung cancer. Explain why you think that radon is associated with this cancer type. (3 marks)
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