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NEET2008ChemistryStructure of AtomActual

Assertion : The quantized energy of an electron is largely determined by its principal quantum number. Reason : The principal quantum number (n ) 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=- 2 ^2 k^2 m_e^4 n^2 h^2 where n= principal quantum number which has only integral value, it follows that total energy is quantized.

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