PERIODIC TABLE AND PERIODICITY OF PROPERTIES

1. Period number of  27/23 Al is:

 
 
 
 

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

 
 
 
 

3. Which of the following elements belongs to VIIIA?

 
 
 
 

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

 
 
 
 

5. Main group elements are arranged in groups.

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

9. Number of periods in the periodic table are:

 
 
 
 

Question 1 of 9

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