The most common kind of iron nucleus has a mass number of 56. Find the radius, approximate mass, and approximate density of the nucleus. and approximate density of the nucleus. approximate mass The most common kind of iron nucleus has a mass number of 56. Find the radius September 11, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related