Electronic Configurations Of Elements And The Periodic Table

Step 1: Identify the valence electrons in the given electronic configuration. The electronic configuration is: The outermost shell is the 5th shell, and the valence electrons are in the and orbitals.
Step 2: Calculate the total number of valence electrons. - Electrons in : 2 - Electrons in : 3 Total valence electrons = .
Step 3: Determine the group number. The number of valence electrons corresponds to the group number in the periodic table for the p-block elements. Since the element has 5 valence electrons, it belongs to Group 15.
Conclusion: The element belongs to the 15th group of the periodic table.