A single electron in an ion has ionization energy equal to 217.6eV. What is the total number of neutrons present in one ion of it? A single electron in an ion has ionization energy equal to 217.6eV. What is the total number of neutrons present in one ion of it? November 10, 2020 Category: Chapter 2 - Atomic Structure (Level 1 and Level 2) , N Awasthi Physical Chemistry , Facebook Messenger WhatsApp Share this:TwitterFacebook Related