Actinoid contraction is greater from element to element than lanthanoid contraction. Why?
Explain why Cu+ ion is not stable in aqueous solutions?
Which is a stronger reducing agent Cr2+ or Fe2+ and why?
Calculate the ‘spin only’ magnetic moment of M2+ (aq) ion(Z= 27)
Both oxide and fluoride ions are highly electronegative and have a very small size. Due to these properties, they are able to oxidize the metal to its highest oxidation state.
How would you account for the irregular variation of ionization enthalpies (first and second) in the first series of the transition elements?
The Eθ M2+ /M value for copper is positive (+0.34V). What is possibly the reason for this? (Hint: consider its high ΔaHθ and low hydHθ)
Which of the 3d series of the transition metals exhibits the largest number of oxidation states and why?
In the series Sc (Z = 21) to Zn (Z = 30), the enthalpy of atomization of zinc is the lowest, i.e. 126KJ mol-1 . Why?
Silver atom has completely filled d orbitals 4d10 in its ground state. How can you say that it is a transition element?
What can be inferred from the magnetic moment values of the following complex species? Example Magnetic Moment (BM)