Question

A radioactive isotope has a half-life of 2.0 years. The fraction of a pure sample of the isotope
that will have decayed in 6.0 years is
A. 1/8.
B. 1/3.
C. 3/4.
D. 7/8

Answer 1

Answer:

its a. 1/8

Explanation:

Answer 2

Answer:

1/8

Explanation:

Uhm whatever the guy said ^ yeah hope you pass