For I-131- - half life is 8 days- the activity of an 8 mu g sample of I is - 3-18 times 10-15- days-1- 3-18 times 10-15- days-1- 3-18 times 10-12- days-1- 3-18 times 10-18- days-1-

Question

For  I-131- - half life is 8 days- the activity of an  8 mu g  sample of I is - 3-18 times 10-15- days-1-  3-18 times 10-15- days-1-  3-18 times 10-12- days-1-  3-18 times 10-18- days-1-

Toppr Admin · Accepted Answer

For I131, half life is 8 days, the activity of an 8μg sample of I is ?3.18×1015days−13.18×10−15days−13.18×1012days−13.18×1018days−1

For $I^{131}$ , half life is 8 days, the activity of an $8 μ g$ sample of I is ?
$3.18 \times 10^{15} d a y s^{- 1}$
$3.18 \times 10^{- 15} d a y s^{- 1}$
$3.18 \times 10^{12} d a y s^{- 1}$
$3.18 \times 10^{18} d a y s^{- 1}$