Periodic Table and Periodicity of Properties

Which of the following elements belongs to VIIIA?

 
 
 
 

Which of the following groups contain alkaline earth metals?

 
 
 
 

All the elements of Group IIA are less reactive than alkali metals because they have:

 
 
 
 

Which of the following elements has the greatest shielding effect?

 
 
 
 

Period number of Al is:

 
 
 
 

As you move from right to left across a period, which of the following does not increase?

 
 
 
 

Number of periods in the periodic table are:

 
 
 
 

Valence shell electronic configuration of an element M (atomic no. 14) is:

 
 
 
 

Main group elements are arranged in

 
 
 
 

Question 1 of 9

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