Question

What is half-life?

a.) the time it takes for a radioactive atom to lose half its electrons
b.) the time it takes for half of any number of radioactive atoms to decay
c.) the average time it takes for any element to disappear completely
d.) The time it takes for a radioactive atom to lose half its nutrients

Answer 1

C. It just seems right. And it doesn't day anything about atoms. That's guess.

Answer 2

it's b

Step-by-step explanation:

I just took a test with this question and it's b