An element with mass number 81 contains 31.7% more neutrons as compared to protons. Assign the atomic symbol. An element with mass number 81 contains 31.7% more neutrons as compared to protons. Assign the atomic symbol. November 12, 2020 Category: Chapter 2 - Atomic Structure , Chemistry , NCERT Exemplar Class 11 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related
