The half-life of `._(38)^(90)Sr` is 28 years. What is the disintegration rate of 15 mg of this isotope ?

The half-life of ._38^90Sr is 28 years . What is the disintegration rate of 15 mg of this isotope ?

The half-life of "_38^90Sr is 28 years. What is the disintegration rate of 15 mg of this isotope.

The half life of 38^90Sr is 29 years. What is the disintegration rate of 25 mg of this isotope?

The half life of ._38Sr^(90) is 28 years. What is disintegration rate of 15g of this isotope?

The half life of ._38^90Sr is 28 years. The disintegration rate of 15 mg of this isotope is of the order of

The half life of ._38^90Sr is 28 years. The disintegration rate of 15 mg of this isotope is of the order of

The half life of ""_(38) Sr^(90) isotope is 28 years. What is the rate of disintegration of 15 mg of this isotope? (Given Avogadro No =6.023 xx 10^(23) )