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NEET
Exam
NEET
Subject
Chemistry
Chapter
d and f Block Elements

NEET · Chemistry · d and f Block Elements

How does the second ionization enthalpy of lanthanoids compare to...

How does the second ionization enthalpy of lanthanoids compare to that of calcium?

Options

  1. AIt is lower than calcium.
  2. BIt is higher than calcium.
  3. CIt is the same as calcium.
  4. DIt cannot be determined from the information provided.

Correct answer

C. It is the same as calcium.

Step-by-step solution

The second ionization enthalpies of lanthanoids are about 1200 kJ mol–1, which is comparable to those of calcium.
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