The half-life of 215 At is 100 μs. The time taken for the radioactivity of sample of 215 At to decay to 1/16 th of its initial value is The half-life of 215 At is 100 μs. The time taken for the radioactivity of sample of 215 At to decay to 1/16 th of its initial value is June 17, 2021 Category: Cengage NEET by C.P Singh , Chapter 14 - Nuclear Physics and Radioactivity , Part 2 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related