PERIODIC TABLE AND PERIODICITY OF PROPERTIES

1. Period number of  27/23 Al is:

 
 
 
 

2. Main group elements are arranged in groups.

 
 
 
 

3. Which of the following elements belongs to VIIIA?

 
 
 
 

4. Which of the following groups contain alkaline earth metals?

 
 
 
 

5. All the elements of Group IIA are less reactive than alkali metals. This is because these elements have:

 
 
 
 

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

 
 
 
 

7. Which of the following elements you expect to have greater shielding effect?

 
 
 
 

8. As you move from right to left across a period, which of the following do not increase:

 
 
 
 

9. Number of periods in the periodic table are:

 
 
 
 

Question 1 of 9

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