Question

What is half-life? a. Half-life is a term that describes the time it takes for half of a particle to disintegrate c. Half-life is a term that describes the time it takes for the amount of radioactivity to increase by one half. b. Half-life is a term that describes the time it takes for the amount of radioactivity to go down by one half. d. None of the above

Answer 1

Well, half-life is the radioactivity of an identified isotope that decreases by half of the actual value.
So, your answer would be C.