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All transition elements are d-block elements, but all d-block elements are not transition elements. Explain.

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A transition element contains partially filled d orbital in its ground state or oxidation state but elements like Zn, Cd, Hg contain fulfilled d orbitals in their grond state as well as oxidation state.
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A transition element will have incompletely filled d orbital and forms more than one stable ions. Scandium is a d block element but not at all a transition element because when it loses 2 electrons from s orbital and and only one electron from d orbital it will become stable due to the electronic configuration...
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A transition element will have incompletely filled d orbital and forms more than one stable ions. Scandium is a d block element but not at all a transition element because when it loses 2 electrons from s orbital and and only one electron from d orbital it will become stable due to the electronic configuration of noble gas . And also Zinc have full d orbitals. So Zinc also is considered as a d block element but not a transition element

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d-block elements which have the capacity to exist as stable ion with incompletely filled d-orbital are termed as transition elements.
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I hv chemistry teacher qualified CSIR -UGC-NET & GATE with all India rank -6 with 5 years tec exp...

Those element outer most electron present in d orbital but in d block inner tradition metal also involved also called as f block .
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