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Both Cu and Zn have completely filled 3...

Both Cu and Zn have completely filled 3d atomic orbitals. Cu is considered as transition elements but Zn is not. Explain.

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To explain why copper (Cu) is considered a transition element while zinc (Zn) is not, despite both having completely filled 3d atomic orbitals, we need to analyze their electronic configurations and the nature of their cations. ### Step-by-Step Solution: 1. **Electronic Configuration of Copper (Cu)**: - The atomic number of copper is 29. Its electronic configuration is: \[ \text{Cu: } [\text{Ar}] 4s^1 3d^{10} ...
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Why is enthalpy of atomisation is the lowest for Zn in 3d series of transition elements ?

Assertion (A): Zn is not a transition element. Assertion (R): Elements with incompletely filled d-orbitals are called transition elements

Knowledge Check

  • Consider the following 3 elements. Fe,Cu,ZN Choose the incorrect option.

    A
    Only 2 are paramagnetic
    B
    Number of d-electron: `Fe lt Cu lt Zn`
    C
    All are transition elements
    D
    All are less metallic than s-block elements of same period

  • Assertion (A)Although Zn is the member of Ist series yet not a transition element. Reason ( R) The orbitals in Zn are completely filled in ground as well as in oxidation state.

    A
    Both Assertion and Reason are correct explanation of the Assertion
    B
    Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion
    C
    Assertion is correct but Reason is incorrect
    D
    Both Assertion and Reason are incorrect

  • The atomic radius of Zn is __ than that of Cu.

    A
    less
    B
    greater
    C
    equal
    D
    none

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    Complete the following equation: Zn + CuSO_4 to ………. + Cu

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