A radioactive sample has 8.0 * 10^18 active nuclei at a certain instant. How many of these nuclei will still be in the active state after two half-lives (in * 10^18)? A radioactive sample has 8.0 * 10^18 active nuclei at a certain instant. How many of these nuclei will still be in the active state after two half-lives (in * 10^18)? October 20, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related