The radius of hydrogen atom in the ground state is 5.3 * 10^-11 m. When struck by an electron, its radius is found to be 21.2 * 10^-11 m. The principal quantum number of the its radius is found to be 21.2 * 10^-11 m. The principal quantum number of the The radius of hydrogen atom in the ground state is 5.3 * 10^-11 m. When struck by an electron October 15, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related