22Ne nucleus, after absorbing energy, decays into two α – particles and an unknown nucleus. The unknown nucleus is 22Ne nucleus after absorbing energy decays into two α - particles and an unknown nucleus. The unknown nucleus is September 15, 2021 Category: Chapter 18 - Atoms and Nuclei , JEE Mains Physics 2002-2019 Solved Video Solutions , Facebook Messenger WhatsApp Share this:TwitterFacebook Related