During the nuclear explosion, one of the products is Sr with a half-life of 6.93 years. If 1 µg of S — Chemical Kinetics Chemistry Question

Question

During the nuclear explosion, one of the products is Sr with a half-life of 6.93 years. If 1 µg of Sr was absorbed in the bones of a newly born baby in place of Ca, how much time, in years, is required to reduce it by 90% if it is not lost metabolically 90 90