Isotope X has a decay constant that is twice the decay constant of isotope Y
CHEMISTRY · Single correct · US High School · Chemistry · Atomic Structure & Nuclear · Atomic Structure & Nuclear
Problem
Isotope X has a decay constant that is twice the decay constant of isotope Y. Which one of the following correctly compares their half-lives?
(a) Half-life of X is double the half-life of Y.
(b) Half-life of X is half the half-life of Y.
(c) Half-life of X is approximately 0.35 times the half-life of Y.
(d) The half-lives cannot be compared without knowing the initial number of nuclei.