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Recent questions tagged telegram-1768
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(chatquestion)...TAIS. Z1 0uays , daysj 30 Calculate the half life of radium. 1g of radium is reduced by 2 mg in 5 years by a-decay. [Ans. 1672 years]
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telegram-1768
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Apr 25, 2020
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balaji.thirumalai
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