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NEETChemistryd and f Block Elements

Assertion (A) : Transition elements have higher enthalpies of atomization. Reason (R) : Large number of unpaired electrons present in transition elements facilitate strong interatomic interaction and strong bonding between atoms.

Options

  1. ABoth (A) and (R) are correct and (R) is the correct explanation of (A)
  2. BBoth (A) and (R) are correct and (R) is not the correct explanation of (A).
  3. C(A) Is correct and (R) is incorrect.
  4. D(A) Is incorrect and (R) is correct.

Correct answer

A. Both (A) and (R) are correct and (R) is the correct explanation of (A)

Step-by-step solution

More the no. of valence electrons more is the overlapping. This phenomenon also leads to the high melting and boiling point.

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