Which of the following relations is correct for the energy of the ground state of hydrogen-like species?

  • A
    $E_1(H) = \frac{1}{2} E_2(He^+) = \frac{1}{3} E_3(Li^{2+}) = \frac{1}{4} E_4(Be^{3+})$
  • B
    $E_1(H) = E_2(He^+) = E_3(Li^{2+}) = E_4(Be^{3+})$
  • C
    $E_1(H) = 2 E_2(He^+) = 3 E_3(Li^{2+}) = 4 E_4(Be^{3+})$
  • D
    No relation exists

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