What atomic number of an element X would have to become so that the 4th orbit around X would fit inside the 1st Bohr orbit of H−atom? What atomic number of an element X would have to become so that the 4th orbit around X would fit inside the 1st Bohr orbit of H−atom? November 10, 2020 Category: Chapter 2 - Atomic Structure (Level 1 and Level 2) , N Awasthi Physical Chemistry , Facebook Messenger WhatsApp Share this:TwitterFacebook Related