Question

Question 44 (c)
Atomic number of a few elements are given below 10, 20, 7, 14. Identify the periods of these elements in the Periodic Table.

Answer 1

Neon has atomic number 10. It belongs to the 2nd period of the periodic table.

Calcium has atomic number 20. It belongs to the 4th period of the periodic table.

Nitrogen has atomic number 7. It belongs to the 2nd period of the periodic table.

Silicon has atomic number 14. It belongs to the 3rd period of the periodic table.