CBSE Class 10 Chemistry Modern Periodic Table of Elements

Q.

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



Q.

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



Q.

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.