Advertisements
Advertisements
Question
The elements of 3d transition series are given as: Sc Ti V Cr Mn Fe Co
Answer the following: Write the element which shows maximum number of oxidation states. Give reason.
Advertisements
Solution
Mn shows the maximum oxidation state of +7. Mn (3d54s2) has half-filled d orbitals and can lose all seven valence electrons.
APPEARS IN
RELATED QUESTIONS
Explain why Cu+ ion is not stable in aqueous solutions?
Write down the number of 3d electrons in the following ion:
Cu2+
Indicate how would you expect the five 3d orbitals to be occupied for this hydrated ion (octahedral).
Explain why transition metals and their compounds act as a catalyst.
Transition metals with lowest melting point is ______.
Out of \[\ce{Cu2Cl2}\] and \[\ce{CuCl2}\], which is more stable and why?
It has been observed that first ionization energy of 5 d series of transition elements are higher than that of 3d and 4d series, explain why?
A metallic ion 'M' reacts with chloride ion to form white precipitate which is readily soluble in aqueous ammonia. Identify 'M'?
The basic character of transition metals monoxide follow the order.
Why are all copper halides known except that copper iodide?
Complete the following reaction and justify that it is a disproportionation reaction:
\[\ce{3MnO^{2-}4 + 4H^+ -> \underline{}\underline{}\underline{}\underline{} + \underline{}\underline{}\underline{}\underline{} + 2H2O}\]
