What is the radius of the 3rd orbital in hydrogen? [?] × 10²] m

In the ground state of the Hydrogen atom the energy of the electron is E0 = -13.61 eV. What is the energy of the electron in the ground state of the He+ ion?  Hints:The He+ ion is a Hydrogen-like structure, it has only one electron.How does the energy of the electron depend on the charge of the nucleus? Is this a bound state? Make sure, your answer has the correct sign.   Incorrect. Tries 1/20 Previous Tries What is the energy of the electron in the ground state of the Li++ ion?   Tries 0/20   The electron in the He+ ion is excited to the n = 2 principal state. What is the energy of the electron now?    Tries 0/20   What is the energy of the electron in the Li++ ion in the n = 2 principal state?    Tries 0/20   What is the energy of the electron in the Li++ ion in the n = 3 principal state?   Tries 0/20   Take element Z = 83 from the periodic table. Ionize it 82 times so that there is only one electron left orbiting around the nucleus. What is the…

What is the frequency of the photon emitted by a hydrogen atom when its electron drops from the n = 6 to n = 4 energy level? [? ] × 10¹²] Hz Coefficient (green) Exponent (yellow) Enter