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Which Is More Dangerous in Terms of Short-Lived Exposure to Radiation

Question 65

Multiple Choice

Which is more dangerous in terms of short-lived exposure to radiation? One mole of

A) (⁸⁹Sr,β^-,t_1/2 = 50.5 days.)
B) (⁹⁰Sr,β^-,t_1/2 = 28.5 years.)
C) (⁹¹Sr,β^-,t_1/2 = 9.5 hours.)
D) (⁹⁴Sr,β^-,t_1/2 = 74 seconds.)

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