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12th Class Chemistry The d-and f-Block Elements / d तथा f ब्लॉक के तत्व Question Bank 12th CBSE Chemistry The d-and f-Block Elements

  • question_answer
      The first two ionisation enthalpies of lanthanides are comparable with those of calcium. Explain.

    Answer:

      Last electronic configuration of lanthanoids are similar to that of calcium. Therefore first two ionisation enthalpies of lanthanoids are comparable with Ca.


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