The quantum number $m$ of a free gaseous atom is associated with

  • A
    The effective volume of the orbital
  • B
    The shape of the orbital
  • C
    The spatial orientation of the orbital
  • D
    The energy of the orbital in the absence of a magnetic field

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The number of electrons present in all the completely filled subshells having $n=4$ and $s=+\frac{1}{2}$ is . . . . . . . (Where $n=$ principal quantum number and $s=$ spin quantum number)

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The magnetic quantum number is related to:

The graph between $|\psi|^2$ and $r$ (radial distance) is shown below. This represents

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