8.5 How would you account for the irregular variation of ionisation enthalpies (first and second) in the first series of the transition elements?
8.4 The value for copper is positive . What is possible reason for this? (Hint: consider its high and low )
8.3 Which of the 3d series of the transition metals exhibits the largest number of oxidation states and why?
The enthalpy of atomisation of zinc is lowest due to the absence of unpaired electron,which ie responsible formetallic bonding in the elements.Therefore, the inter-atomic bonding is weak in zinc(). Hence it has low enthalpy of atomisation.
8.1 Silver atom has completely filled d-orbitals in its ground state. How can you say that it is a transition element?