Question 3 [AC 2.3] Calculation Question Marie and Pierre Curie managed to extract 1 mg of radium from ten tonnes of the uranium ore in 1898. Their samples glowed with a faint blue light in the dark, caused by the intense radioactivity exciting the surrounding air. Calculate a) The decay constant for radium-226 b) The number of radium atoms in a 1mg sample of radium-226 c) The activity of a 1mg sample of radium-226 d) The number of radium atoms from that sample remaining in 2018 (120 years later)

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Question 3 [AC 2.3] Calculation Question
Marie and Pierre Curie managed to extract 1 mg of radium from ten tonnes of the uranium ore in
1898. Their samples glowed with a faint blue light in the dark, caused by the intense radioactivity
exciting the surrounding air.
Calculate
a) The decay constant for radium-226
b) The number of radium atoms in a 1mg sample of radium-226
c) The activity of a 1mg sample of radium-226
d) The number of radium atoms from that sample remaining in 2018 (120 years later)
Transcribed Image Text:Question 3 [AC 2.3] Calculation Question Marie and Pierre Curie managed to extract 1 mg of radium from ten tonnes of the uranium ore in 1898. Their samples glowed with a faint blue light in the dark, caused by the intense radioactivity exciting the surrounding air. Calculate a) The decay constant for radium-226 b) The number of radium atoms in a 1mg sample of radium-226 c) The activity of a 1mg sample of radium-226 d) The number of radium atoms from that sample remaining in 2018 (120 years later)
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