Manganese-52 has a half-life of 6 days. how many days would a scientist have to wait for the radioactivity to be 12.5% the starting amount? 6 12 18 24

18 days

Explanation:

got it right when i took the test

answer; (d) spontaneous processes are characterized by the overall conversion of order to disorder;

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.