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The extra stability of half-filled and c...

The extra stability of half-filled and completely-filled subshell is due to

A

relatively small shielding

B

smaller coulombic repulsion enegry

C

larger exchange enegry

D

all of these

Text Solution

Verified by Experts

The correct Answer is:
D
Electrons in the same subshell have equal enegry but different spatial distribution. Consequently, their shielding of one another is relative small.
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Knowledge Check

  • The correct order of relative stability of half filled and completely filled sub-shell is

    A
    `p^(3) gt d^(5) lt d^(10) lt p^(6)`
    B
    `d^(5) gt p^(3) lt d^(10) lt p^(6)`
    C
    `d^(5) gt p^(3) gt d^(10) gt p^(6)`
    D
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  • Completely filled shells in actinides are

    A
    first two
    B
    first three
    C
    first four
    D
    first five

  • The completely filled and the completely half-filled sub-shells are stable due to

    A
    symmetrical distribution of electrons
    B
    exchange energy
    C
    Both (1) and (2)
    D
    None of the above

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    Half-filled and fully-filled orbital orbitals are more stable

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