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NEET2018ChemistryStructure of AtomActual

Which one is a wrong statement?

Options

  1. AAn orbital is designated by three quantum numbers, while an electron in an atom is designated by four quantum
  2. BTotal orbital angular momentum of electron in 's' orbital is equal to zero.
  3. CThe value of m for dz 2 is zero.

Correct answer

A. An orbital is designated by three quantum numbers, while an electron in an atom is designated by four quantum

Step-by-step solution

Electronic configuration of N He 2 s 2 ,   2 p 3 The correct configuration of ' N ' is, According to Hunds' rule, the electron first singly occupied in parallel, then anti-parallel in any particular orbital. In the given option, the last electron of P - orbital is in downwards spin. So, option 1 is incorrect. Orbital angular momentum of any orbital, L = l     l + 1   .   h 2 π For   S - orbital ,   l   value   = 0 So ,   L   =   0  

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