<p>Given that in the H-atom the transition energy for n = 1 to n = 2, 10.2 eV, the energy for the same transition in&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>B</mi><msup><mi>e</mi><mrow><mn>3</mn><mo>+</mo></mrow></msup><mo>&#160;</mo><mi>i</mi><mi>s</mi><mo>:</mo></math></p>