Physics

Physics

Problem

Iodine-131 (

T_{1/2}=8.0\,\text{d}

, atomic mass

=131\,\text{g\,mol}^{-1}

) is to be prepared with an activity of

5.0\,\text{MBq}

just after production. What mass of

^{131}

I must be taken? a)

0.76\,\text{ng}

b)

1.1\,\text{ng}

c)

11\,\text{ng}

d)

0.046\,\text{ng}

Browse the problem library