NCERT Class XII Chemistry <br> Chapter - The d- and f-Block Elements <br> Questions with Solutions

NCERT Class XII Chemistry
Chapter - The d- and f-Block Elements
Questions with Solutions

Question : 43

Total: 49

How would you account for the irregular variation of ionisation enthalpies (first and second) in the first series of the transition elements?

Solution:

Irregular variation of ionisation enthalpies is mainly attributed tovarying degree of stability of different 3d-configurations (e.g.,d0,d5,d10 areexceptionally stable).

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NCERT Class XII Chemistry Chapter - The d- and f-Block Elements Questions with Solutions

NCERT Class XII Chemistry
Chapter - The d- and f-Block Elements
Questions with Solutions