Half life question: Based on the graphs, which of these statements is correct about Material 1 and Material 2? A) The half-lives of Material 1 and Material 2 are same.
B) The half-life of Material 1 is double the half-life of Material 2.
C) After 2 half-lives, equal amounts of Material 1 and Material 2 are left.
D) After 2 half-lives, the amount of Material 1 left is double the amount of Material 2 left.