During nuclear explosion, one of the products is `.^(90)Sr` with half`-` life of `28.1 `years. If `1 mug` of `.^(90)Sr` was absorbed in the bones of a newly born baby instead of calcium, how much of its will remain after 10 years and 60 years if it is not lost metabolically.

During the nuclear explosion, one of the products is ._(90)Sr with half life of 6.93 years. If mug" of "._(90)Sr was absorbed in the bones of a newly born in place of Ca, how much time (in years) is required to reduce it by 90% . If it is not lost metabolically? Report your answer by rounding it up to a nearest whole number.

Calculate the activity of one gm sample of ._(38)^(90)Sr whose half life period is 28.8 years.

Half life of 90Sr is 6.93 years. In a child body 1 g of 90Sr dopped in place of calcium, how many years will it take to reduce its concentration by 90% (Assume no involvement of Sr in metabolism)

One of the hazards of nuclear expolsion is the generation of .^(90)Sr and its subsequent incorportion in bones. This nuclide has a half-life of 28.1 year. Suppose one microgram was absorted by a new-born chid, how much Sr^(90) will remain in his bones after 20 year?

One of the hazards of explosion is the generation of Sr""^(90) and its subsequent incoperation in bones. This nuclide has a half life of 2.81 years. Suppose one microgram was absorbed by a new born chiled,how much Sr""^(90) will remain in his bone after 20 years?