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The d-And-f-Block Elements
Question
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Within  a periodic group of transition elements the possibility of exhibiting maximum oxidation state increases with atomic number. Why?

Answer

Within a group, the maximum oxidation state increases with atomic numbers. As the number of shell increase the force of attraction between electron and the nucleus decrease thus electron easliy loose and show more oxidation state. For example iron shows the common oxidation states of +2 and +3 but ruthenium and osmium the same group forms compounds in +4, +6 and +8 oxidation states.

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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.