1. Tardigrade
  2. Question
  3. Chemistry
  4. Assertion: Only principal quantum number determines the energy of an electron in an orbital in Na atom. Reason: For one electron system, the expression of energy is quite different as that obtained in Bohr's theory.

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Q. Assertion: Only principal quantum number determines the energy of an electron in an orbital in $Na$ atom.
Reason: For one electron system, the expression of energy is quite different as that obtained in Bohr's theory.

AIIMSAIIMS 2010

Solution:

To find the energy of an electron in an orbital both principal and azimuthal quantum numbers are required. For one electron system, the expression of energy is same as that obtained in Bohr's theory.