A radioactive substance has a half-life of 20 hours. What traction of the original radioactive nuclide will remain after 80 hours? by Sunday | Aug 30 | Physics WAEC | 0 comments A. 1/32 B. 1/16 C. 1/8 D. ¼ E. 1/2 Correct Answer: Option B – 1/16 Users Also Read These:A radioactive nuclide of mass 6.09 has a half-life…The half life of a radioactive substance is 14 days.…A radioactive substance has a half-life of 3 days.…A radioactive substance of mass 768g has a half-life…A radioactive substance has a half-life of 20 hours.…