The half-life of radium is about 1600 years. Of $100\ g$ of radium existing now, $25\ g$ will remain unchanged after

Question

Dr. Abubacker · Accepted Answer

(b) $M = M_{0}\left( \frac{1}{2} \right)^{\frac{t}{T_{1/2}}} \Rightarrow 25 = 100\left( \frac{1}{2} \right)^{\frac{t}{1600}} \Rightarrow t = 3200\ years$

Q. The half-life of radium is about 1600 years. Of $100\ g$ of radium existing now, $25\ g$ will remain unchanged after

Explanation

Reviewed by Dr. Abubacker

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