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प्रश्न
Which of the following has the maximum number of unpaired electrons?
विकल्प
Zn
Fe2+
Ni3+
Cu+
MCQ
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उत्तर
Fe2+
Explanation:
Fe has an atomic number of 26, so Fe2+ has the electronic configuration:
[Ar] 3d6
In 3d6, there are 4 unpaired electrons.
Hence, Fe2+ has the maximum number of unpaired electrons.
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