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The d-And-f-Block Elements
Question
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What may be the stable oxidation state of the transition elements with the following d-electron configurations in the ground state of their atoms 3d3, 3d5, 3d8 and 3d4?

Answer

For 3d2 4s2 the most stable oxidatioon state is +5
For 3d5 4s2 the mosty stable oxidation state is +2,+7
For 3d8 4s2 the most stable oxidation state is +2
For 3d4 4s2 the most stable oxidation state is +3 and +6

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Some More Questions From The d-And-f-Block Elements Chapter

Why is the highest oxidation state of a metal exhibited in its oxide or fluoride only?

Which is a stronger reducing agent Cr2+ or Fe2+ and why?

Explain why Cu+ ion is not stable in aqueous solutions?

Actinoid contraction is greater from element to element than lanthanoid contraction. Why?

On what ground can you say that scandium (Z = 21) is a transition element but zinc (Z = 30) is not?

The outer electronic configuration of copper is 3d10 4s1, yet it is considered transition element. Why?

Why the melting points of transition elements are high?

Why Zn, Cd and Hg are not regarded as transition elements?

Name the first element of 3rd transition series.