Nitrogen (atomic number 7) and phosphorus (atomic number 15) belong to group 15 of the periodic table. Write the electronic configurations of these two elements. Which of these will be more electronegative? Why?
ChemistryClass 10ICSEAnswered 27 Mar 2026
Answer
Electronic configuration:N (2,5) ; P (2, 8, 5)
Nitrogen will be more electronegative because its atom has small size due to which the attraction of its nucleus for the incoming electron is more.