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Metal-metal bonding is more frequent in 4d or 5d series than in 3d-serie. This is because of :–
(a) Their greater enthalpy of atomization
(b) the large size of the orbitals which participates in the metal-metal bond formation
(c) their ability to involve ns and (n–1) d-electrons in the bond formation
(d) the comparable size of 4d and 5d-series elements
Metal-metal bonding is more frequent in 4d or 5d series than in 3d-serie. This is because of :–
(a) Their greater enthalpy of atomization
(b) the large size of the orbitals which participates in the metal-metal bond formation
(c) their ability to involve ns and (n–1) d-electrons in the bond formation
(d) the comparable size of 4d and 5d-series elements
Correct option (a) Their greater enthalpy of atomization