Transition Elements Oxides and Stability in Aqueous Solutions Quiz

Example Magnetic Moment (BM) K4[Mn(CN)6) 2+ [Fe(H2O)6] K2[MnCl4] 2.2 5.3 5.9 Answers to Some Intext Questions 4.1 Silver (Z = 47) can exhibit +2 oxidation state wherein it will have incompletely filled ______, hence a transition element.

In the formation of metallic bonds, no eletrons from 3d-orbitals are involved in case of ______, while in all other metals of the 3d series, electrons from the d-orbitals are always involved in the formation of metallic bonds.

Manganese (Z = 25), as its atom has the maximum number of ______ electrons.

Irregular variation of ionisation enthalpies is mainly attributed to varying 0 5 10 degree of stability of different 3______ (e.g., d , d , d are exceptionally stable).

Because of small size and high electronegativity oxygen or fluorine can ______ the metal to its highest oxidation state.

Cr is stronger reducing agent than Fe ______

In a me______ium (like water) ______ is more stable as compare______ to ______ (see CFSE)

Cu in aqueous solution underoes disproportionation, i.e., 2Cu+(aq) ® Cu2+(aq) + Cu(s) 0 The E value for this is ______.

The 5f electrons are more effectively shielded from nuclear charge.In other words the 5f electrons themselves provide poor shielding from element to element in the ______.

The d- and f- Block Elements Rationalised ______