ICSE-d- AND- f- BLOCK ELEMENTS-EXERCISE (PART-II) (DESCRIPTIVE QUESTIONS)(SHORT ANSWER QUESTIONS) Why do the transition elements exhibit similarity in properties along ... 02:46 Account for the fact that second ionization energies of both Cr and Cu... 04:37 Account for the fact that the...
where –ΔGAB is the free enthalpy of the formation of solid compound AB, and εg is the energy for the formation of an electron-hole pair (the band gap energy). From the energy balance in the foregoing reaction cycle we obtain that εg equals (LAs + LBh − IA + AB − ΔGAB...
Hint: Consider how the presence of f-block elements affects the size of the d-block elements that follow them. 4. Effective Nuclear Charge: - As the atomic number increases across the 5d series, the effective nuclear charge experienced by the outermost electrons increases. This is because the...