A 54.3 mg sample of sodium perchlorate contains radioactivechlorine-36 (whose atomic mass is 36.0 amu).
If 29.6% of the chlorine atoms in the sample are chlorine-36 andthe remainder is naturally occurring nonradioactive chlorine atoms,how many disintegrations per second are produced by this sample?The half-life of chlorine-36 is 3.0×105 yr.
My answer: 1.77x10^7
please explain steps, thank you!
