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One gram of radium is reduced by 2 mili...

One gram of radium is reduced by `2` miligram in `5` yers by `alpha`-decay. Calculate the half-life of radium.

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To find the half-life of radium given that 1 gram is reduced by 2 milligrams in 5 years due to alpha decay, we can follow these steps: ### Step 1: Understand the given data - Initial mass of radium (N₀) = 1 gram - Mass reduced in 5 years = 2 milligrams = 0.002 grams - Remaining mass after 5 years (N) = 1 gram - 0.002 grams = 0.998 grams - Time (t) = 5 years ...
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