The amount of time it takes for half of a sample to disappear is:
a
fusion
b
fission
c
half-life
d
nuclear chemistry
c
half-life
The correct answer is c) half-life.
The amount of time it takes for half of a sample to disappear is called the "half-life." It is a concept commonly used in nuclear chemistry. To get the answer to this question, you can eliminate options a, b, and d because they are not directly related to the question.
Option c, "half-life," is the correct answer because it specifically refers to the time it takes for half of a radioactive substance or sample to decay or disappear. This concept is important in nuclear chemistry as it helps determine the rate and decay of radioactive elements.