The d & f Block Elements — Chemistry STD 12 Science — Question
Rajasthan BoardEnglish MediumSTD 12 ScienceChemistryThe d & f Block Elements1 Mark
Question
Transitional elements exhibit variable valencies because they release electrons from the following orbits:
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Answer
(n−1)d and ns orbits
Explanation:
The ability of the transition metals to exhibit variable valency is generally attributed to the availability of more electrons in the (n−1)d orbitals which are closer to the outermost ns orbital in energy levels.
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