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Which of the following statements regard...

Which of the following statements regarding subshell filling order for a neutral atom is correct?
(i) Electrons are assigned to the 4s subshell before they are assigned to the 3d subshell
(ii) Electrons are assigned to the 4f subshell before they are assigned to the 6s subshell
(iii) Electrons are assigned to the 4d subshell before they are assigned to the 5p subshell

A

i only

B

ii only

C

i and ii

D

i,ii and iii

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Knowledge Check

  • which of the following statements regarding subdhell filling for s neutrsl stom is /are Correct (P) Electrons are assigned to the 4s subshell before they are assogned to the 3d subshell (Q) electrons are assigned to the 4f subshell they are assigned to the 6s subshell (R) elecrons are assigned to the 4d subshell before they are assigned to the 5p subshell

    A
    P only
    B
    Q only
    C
    P and R
    D
    P,Q and R

  • Which of the following does not have valence electrons in 3d-subshell?

    A
    Fe(III)
    B
    Mn(II)
    C
    Cr(I)
    D
    Ti(IV)

  • Einstenium has 11 electrons in the 4f subshell. The number of unpaired electrons in the subshell is:

    A
    3
    B
    4
    C
    7
    D
    11

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