Question

Explain the following observation

(i) Silver atom has completely filled d-orbitals (4d¹⁰) in its ground state, yet it is regarded as a transition element

(ii) E⁰ value for Mn³⁺/M²⁺ couple is much more positive than Cr³⁺ +/Cl²⁺.

Answer 1

(i) Silver can exhibit +2 oxidation state wherein it will have incompletely filled d- orbital.

(ii) Much higher third ionisation energy of Mn where the required change is from d⁵ to d⁴.