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?
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?

The electronic configuration of nitrogen and phosphorous are as follows: N = (2,5) ; P = (2, 8, 5)

Nitrogen will have more electronegativity because its atom has small size due to which the attraction of its nucleus for the incoming electron is more and more easy to attract the electron.