Find the atomic number of element belonging to `4th` period and `17th` group in Modern periodic table `:`

Find the atomic number of an element which belongs to third period and group-17 in 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.

Write the atomic number of the element in the third period and group 17 of the period table.

Element with atomic number 49 belongs to the period ……..and the group ……….. .

The number of valence electrons in an element belonging to period 3 and group 2 of the Modern Periodic Table is

What is the atomic number of an element of period 2 and group 17 of the periodic table?

Element with atomic number belongs to the period.........and the group ........