The ionization ethalpy of hydrogen atom is 1.312 x 10^6 J/mol. The energy required to excite the electron in the atom from n = 1 to n = 2 is The ionization ethalpy of hydrogen atom is 1.312 x 10^6 J/mol. The energy required to excite the electron in the atom from n = 1 to n = 2 is November 27, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related