Radioactivity of neptunium stops when it is converted to (a) Bi (b) Rn (c) Th (d) Pb Radioactivity of neptunium stops when it is converted to (a) Bi (b) Rn (c) Th (d) Pb February 14, 2021 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related