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AIIMS 2008
Exam
AIIMS
Year
2008
Subject
Chemistry
Chapter
Structure of Atom

AIIMS 2008 · Chemistry · Structure of Atom

Assertion : The quantized energy of an electron is largely...

Assertion : The quantized energy of an electron is largely determined by its principal quantum number. Reason : The principal quantum number nn is a measure of the most probable distance of finding the electron around the nucleus.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

A. If both assertion and reason are true and reason is the correct explanation of assertion.

Step-by-step solution

E=−2π2k2me4n2h2E=-\frac{2 \pi^2 k^2 m_e^4}{n^2 h^2} where n=n= principal quantum number which has only integral value, it follows that total energy is quantized.
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