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JEE Main202228 Jul 2022Morning ShiftChemistryStructure of AtomActual

Identify the incorrect statement from the following.

Options

  1. AA circular path around the nucleus in which an electron moves is proposed as Bohr's orbit.
  2. BAn orbital is the one electron wave function
  3. CThe existence of Bohr's orbits is supported by hydrogen spectrum.
  4. DAtomic orbital is characterised by the quantum numbers n and l only

Correct answer

D. Atomic orbital is characterised by the quantum numbers n and l only

Step-by-step solution

An electron can move only in those orbits for which its angular momentum is integral multiple of h 2 π . That means angular momentum is quantised. Radiation is emitted or absorbed only when transition of electron takes place from one quantised value of angular momentum to another. Therefore. Maxwell's electromagnetic theory does not apply here that is why only certain fixed orbits are allowed. Atomic orbital is characterised by n , l , m . So, the option D is incorrect.

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