Recall that your hypothesis is that these values are the fraction of atoms that are still radioactive after n half-life cycles. Record in the appropriate blanks. A = 0.5 B = 0.25 C = 0.125 D = 0.015625 E = Recall that your hypothesis is that these values are the fraction of atoms that are still radioactive after n half-life cycles. Record in the appropriate blanks. A = 0.5 B = 0.25 C = 0.125 D = 0.015625 E =