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Half-filled and fully-filled orbital orb...

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

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STATEMENT-1: Half-filled and fully-filled degenerate orbitals are more stable. STATEMEHNT-2: Extra stabillity is due to the symmetrical distribution of electrons and exchange energy.

We know that fully filled and half filled orbitals are more stable. Can you write the electronic configuration of Cr(Z=24)?

Knowledge Check

  • Cu_((aq.))^+ has less stable nature than Cu_((aq.))^(2+) but Fe_((aq.))^(3+) is more stable than Fe_((aq.))^(2+) . Half-filled and completely filled, sub-shell are more stable.

    A
    If both assertion and reason are true and the reason is the correct explanation of the assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of the assertion.
    C
    If assertion is true but reason is false
    D
    If assertion is false but reason is true.

  • Assertion: Cu^(2+) (aq) is less than Cu^(3+) (aq) but Fe^(3+) is more stable than Fe^(2+) (aq) Reason : Half filled and completely filled subshells are more stable

    A
    If both assertion and reason are true and the reason is the correct explanation of assertion
    B
    If both assertion and reason are true and the reason is not the correct explanation of assertion
    C
    If assertion is false but reason is true
    D
    If assertion is true but the reason is false

  • In which of the following species only half filled and full filled orbitals of central atom participate in hybridisation

    A
    `SO_(3)`
    B
    `NH_(4)^(+)`
    C
    `BF_(4)^(-)`
    D
    `l_(3)^(-)`

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    Statement-1: Hybridisation is the mixing of atomic orbitals. Statement-2: In hybrididsation all types of atmoci orbitals half-filled,full-filled and vacant orbitals are participate.

    Rules OF Filling OF Electrons || Aufbau's Principle || (n+l) rule || Hund's Rule OF Maximum Multiplicity || Pauli's Exclusion Principle || Reason OF Stability OF Half filled and Fully filled Orbitals || Electronic Configuration OF First 30 elements

    The most stable orbitals are

    Statement-1 : The third ionisation enthalpy of La, Gd and Lu are abnormally low. Statement-2 : Empty, half-filled and completelt filled orbitals of f-level are extra stable.

    Assertion (A)Cr and Cu are extra stable in the 3d-series. Reason ( R) Half and completely filled set of orbitals are relatively more stable.

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