2. An isotope of sodium 24N a has a half-life of 15 hours. A sample of this isotope has a mass of 2g. (a) Find the amount remaining after 60 hours.  (b) Find the amount remaining after t hours.  (c) Estimate the amount remaining after 4 days.  (d) Estimate the time required for the mass to be reduced to 0.01g

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Q: 40. Balance the following equation: 239- Th 90 239 U 239 94 2381 94 Pu 239 93

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Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.