What is the atomic number of the element present in the second period anf group 15.

What is the atomic number of the element present in the second period and group 15.

Writen the atomic number of the element present in the fourth period and eighth group of the Modern periodic table.

Writen the atomic number of the element present in the fourth period and eighth group of the Modern periodic table.

Write atomic number of the element present in the third period & seventeenth group of periodic table.

Write the atomic number of the element present in the third period and seventeenth group of the periodic table.

Write the atomic number of the element present in the third period and seventeenth group of the periodic table.