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the energies of the 3s ,3p 3p and 3d orb...

the energies of the 3s ,3p 3p and 3d orbitals in a muti -electron atom increase in that order ,to which facter (s) can this order eb attributed ?
(P) the relative pentrations of these orbitals near the nucleus .
(Q) the relative average distance of the electromn from the nucleus.

A

P only

B

Q only

C

Both pand Q

D

Neither p nor Q

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The correct Answer is:
c
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Knowledge Check

  • The orbital angular momentum of 3p electron is :-

    A
    `sqrt3 h`
    B
    `sqrt6 h`
    C
    zero
    D
    `sqrt2(h)/(2pi)`

  • The decreasing order of energy of the 3d,4s,3p,3s orbital is :-

    A
    `3dgt3sgt4sgt3p`
    B
    `3sgt4sgt3pgt3d`
    C
    `3dgt4sgt3pgt3s`
    D
    `4sgt3dgt3sgt3p`

  • The number of orbital nodews of 3s and 2p orbital are, respectively

    A
    `2,0`
    B
    `0,2`
    C
    `1,7`
    D
    `2,11`

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