The degree of decay of a radioactive species with after six years is

CHEMISTRY · Single correct · US High School · Chemistry · Atomic Structure & Nuclear · Atomic Structure & Nuclear

Problem

The degree of decay of a radioactive species with

t_{1/2}=12\,\text{years}

after six years is (1)

0.30

(2)

0.60

(3)

0.20

(4)

0.45