Answer
True.
Work Step by Step
A half life signifies the amount of time it takes for half of a substance to decay. At 1:01, 16 grams are left. At 1:02, 8 grams are left. At 1:03, 4 grams are left. At 1:04, 2 grams are left. Finally, at 1:05, 1 gram is left.