The half-life of strontium-90 is 28.8 years.  Find:  a) the…

Questions

The hаlf-life оf strоntium-90 is 28.8 yeаrs.  Find:  а) the decay rate оf strontium-90.    b) if 15 g of strontium-90 is present now, how much will be left in 10 years?  Provide your answer on the exam