Plutonium has atomic mass 210 and a decay constant equal to 5.8 * 10^8 s^-1. The number of alpha particles emitted per second by 1 mg plutonium is Plutonium has atomic mass 210 and a decay constant equal to 5.8 * 10^8 s^-1. The number of alpha particles emitted per second by 1 mg plutonium is October 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related