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Question: Answered & Verified by Expert
Which statement is incorrect with reference to inner transition elements?
Chemistryd and f Block ElementsJEE Main
Options:
  • A The oxides of lanthanoids are basic
  • B Pm is radioactive element among actinoids
  • C The values of ionization enthalpy of actinoids are less than the values of ionization enthalpy of lanthanoids
  • D Only in the electronic configuration of lanthanoids like Ce,Gd, Lu the electrons are filled in 5d orbitals
Solution:
1131 Upvotes Verified Answer
The correct answer is: Pm is radioactive element among actinoids
Pm is not actinoids, its a lanthanide

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