CBSE Class 10 Chemistry Modern Periodic Table of Elements


Element A belongs to which group if its atomic number is 15? 


Beryllium is the first element in Group 2 with atomic number 4. The atomic number of the second element in the same group is 


Which of the following pairs of elements are chemically dissimilar? 

Periodic Classification of Elements - Exam Decoded - 2

Understand the Modern periodic law, periods and rows, and trends in periodic table.

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