Starting with a sample of pure 66Cu, 7/8 of its decays into Zn in 15 min. The corresponding half-life is 7/8 of its decays into Zn in 15 min. The corresponding half-life is Starting with a sample of pure 66Cu November 28, 2020 Category: Chapter 18 - Atoms and Nuclei , JEE Mains Physics 2002-2019 [...]