On our CodyCross answers based website we have the solution for Time taken for radioactivity to reduce by 50%. CodyCross game includes different missions and events which update daily so you can earn tokens that are mostly needed to help with answers for challenging clues. Now let's focus on the answer you need for Time taken for radioactivity to reduce by 50% by scrolling down which is part of CodyCross Spring Things Group Puzzle 1.