MDCAT Chemistry MCQ #920

The Bohr model accurately predicts the spectral lines of hydrogen but fails for helium. What is the fundamental limitation causing this discrepancy?

MDCAT Chemistry MCQ #920

  1. Question 1

    Q1. The Bohr model accurately predicts the spectral lines of hydrogen but fails for helium. What is the fundamental limitation causing this discrepancy?

    • A) Bohr's model does not account for electron-electron repulsion
    • B) Bohr's model assumes quantized energy levels for all atoms
    • C) Bohr's model includes relativistic effects
    • D) Bohr's model uses de Broglie's wave-particle duality

    Answer: Bohr's model does not account for electron-electron repulsion

    Explanation: Bohr's model lacks electron-electron repulsion calculations (A). Option B is false because it only works for hydrogen-like atoms.