Show how to solve it What is the specific activity in Bqg if

Show how to solve it.

What is the specific activity (in Bq/g) if 8.99 mu g of an isotope emits 7.4 Times 104 beta particles per minute? Enter your answer in scientific notation.

Solution

Sa=lamda*No;Sa=activity

Sa=7.4*10^4*8.99*10-6

Sa=0.422particles/gm minute