f. Na Cr O KCl . What are interstitial compounds? .
Calculate the number of unpaired electrons in Ti + , Mn + and calculate the spin only magnetic moment. . Write the electronic configuration of Ce + and Co + . .
Explain briefly how + states becomes more and more stable in the first half of the first row transition elements with increasing atomic number. . Which is more stable? Fe + or Fe + - explain.
. Explain the variation in E M + M + / 3d series. XII U4-D-Block-Jerald XII U4-D-Block-Jerald - - - - . Compare lanthanoids and actinoids.
. Explain why Cr + is strongly reducing while Mn + is strongly oxidizing. . Compare the ionization enthalpies of first series of the transition elements.
. Actinoid contraction is greater from element to element than the lanthanoid contraction, why? . Out of Lu(OH) and La(OH) which is more basic and why?
. Why Europium (II) is more stable than Cerium (II)? . Why do Zirconium and Hafnium exhibit similar properties?
. Which is stronger reducing agent Cr + or Fe + ? . The E M + M / value for copper is positive.
Suggest a possible reason for this. . Describe the variable oxidation state of 3d series elements. .
Which metal in the 3d series exhibits + oxidation state most frequently and why? . Why first ionization enthalpy of chromium is lower than that of zinc? .
Transition metals show high melting points. Why? XII U4-D-Block-Jerald XII U4-D-Block-Jerald - - - -