<p>The energy of the electron in second Bohr&#39;s orbit in the hydrogen atom is -3.41 eV. The energy of the electron in second Bohr&#39;s orbit of&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>H</mi><msup><mi>e</mi><mo>+</mo></msup></math>&nbsp;ion would be:</p>