Chemistry-
General
Easy

Question

Lanthanides which are placed below the main body of periodic table are a part of:

  1. 5 th period & III B group    
  2. 6 th period and III B group    
  3. 6 th period and Iv B group    
  4. 5 th period and Iv B group    

The correct answer is: 6 th period and III B group

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