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

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

Write the electronic configuration of the element present in the third period and seventeenth group of the periodic table.

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.

What is the value of (n+l) for the unpaired e^(-) in an atom of an element which is present in the 3rd period and seventeenth group of the periodic table.