If the Decay Constant for ¹³¹I Is 9

Multiple Choice

If the decay constant for ¹³¹I is 9.98 × 10^-7 s^-1,calculate the activity of a 1.00 mg sample.

A) 4.59 × 10¹² atoms/s
B) 4.73 × 10¹² atoms/s
C) 4.61 × 10²⁴ atoms/s
D) 9.98 × 10^-4 atoms/s