Class 12 Chemistry D and F Block Elements Physical Properties

Physical Properties

  • The transition metals are hard and tough. They have low volatility butZn, Cd and Hg are an exception.


  • They have high melting and boilingpoints due to the greaterquantity of electrons from (n-1) d along with the ns electrons metallic

Fig. The trends in melting point of d-block elements.

  • Metals possessing high boiling point are noble in their
  • The metals belonging to second and third series have greater enthalpies ofatomisation than the elements belonging to first series.

Fig. Enthalpies of atomisation

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