The cause of periodicity of properties is

Options :
  1. increasing atomic radius
  2. increasing atomic weights
  3. number of electrons in the valency orbit
  4. the re-occurrence of similar outer electronic configuration

Answer and Explanation :-

Answer: Option 4


Sorry there is no explanation for this answer. Please help others by posting your response below

How do you rate this queston?  Very Easy  Easy  Average  Above Average  Tough

Previous Question : Among the following which has the highest first ionization energy

Next Question : Electron affinity is the lowest in

Click here for free online test on Chemical Periodicity


 (Getemail alerts when others member replies)

I don't believe we shall ever again have any form of society in which men will be free. One should not hope for it. One should not hope for anything. Hope is invented by politicians to keep the electorate happy. Pier Paolo Pasolini, Philippe S amp