Chapter 19, Problem 19.89SP

Interpretation Introduction

Interpretation:

  $A=\lambda N$

where λ is the decay constant, and N is the number of atoms
Putting in the formula the values of λ and N

Concept introduction:
  $A=\lambda N$

where λ is the decay constant, and N is the number of atoms
Putting in the formula the values of λ and N

  $3.7\times {10}^{10}$ decays per second or becquerels =1 Ci
1 Bq = 1 decay per second

Given:

Half-life of $Ra$$\left(t_{\frac{1}{2}}\right)$     =  1600 years

To determine:

The activity of 10.0 mg of $Ra$ in units of Bq and Ci