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24 August, 21:54

5. An element whose highest occupied s sublevel and a nearby d sublevel

contain electrons

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  1. 25 August, 01:19
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    Transition Element

    Explanation:

    Transition elements are defined as those elements which can form at least one stable ion and has partially filled d-orbitals. They are also characterized by forming complex compounds and having different oxidation states for a single metal element.

    Transition metals are present between the metals and the non metals in the periodic table occupying groups from 3 to 12. There general electronic configuration is as follow,

    (n-1) d ¹⁻¹⁰ns ¹⁻²

    The general configuration shows that for a given metal, the d sublevel will be in lower energy level as compared to corresponding s sublevel. For example,

    Scandium is present in fourth period hence, its s sublevel is present in 4rth energy level so its d sublevel will be present in 3rd energy level respectively.

    Hence, we can conclude that for transition metals the electron are present in highest occupied s sublevel and a nearby d sublevel.
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