Question 1194724
Half-life of Gallium-67 is 3.26 days.


{{{A=p*e^(kt)}}}{{{decay}}}


{{{1/2=1*e^(3.26k)}}}



{{{ln(1/2)=ln(1)+ln(e^(3.26k))}}}

{{{-0.693147=3.26k}}}

{{{k=-0.693147/3.26}}}

{{{k=-0.21262}}}


Revised decay equation:  {{{highlight(A=pe^(-0.21262t))}}}
time t in days
p original amount
A amount after time t