engineering chemistry MCQ #965

The radius of the nth orbit is proportional to n² / Z. For hydrogen (Z = 1), if r1 = 0.53 Å, r2 will be

engineering chemistry MCQ #965

  1. Question 1

    Q1. The radius of the nth orbit is proportional to n² / Z. For hydrogen (Z = 1), if r1 = 0.53 Å, r2 will be

    • A) 2.12 Å
    • B) 1.06 Å
    • C) 0.53 Å
    • D) 4.24 Å

    Answer: 2.12 Å

    Explanation: Using r ∝ n², r2 = r1 * (2)² = 0.53 * 4 = 2.12 Å.