N1 atoms of a radioactive element emit N2 beta particles per second. The decay constant of the element is (in s^-1) N1 atoms of a radioactive element emit N2 beta particles per second. The decay constant of the element is (in s^-1) November 28, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 31 - Nuclei , Physics , Facebook Messenger WhatsApp Share this:TwitterFacebook Related