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Nitrogen (atomic number 7) and phosphorus (atomic number 15) belong to group 15 of the Periodic Table. Write the electronic configuration of these two elements. Which of these will be more electronegative? Why?​

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makaylabump05

Answer:

Electronic configuration of nitrogen: K=2 L=5

Electronic configuration of phosphorus : K = 2 L = 8 M = 5

The element nitrogen will be more electronegative because of the smaller size of its atom. nitrogen accepts electrons more easily.

Explanation:

Explanation:

  • The atomic number of nitrogen is 7 , so its electronic configuration will be 2 , 5
  • The atomic number of phosphorus is 15 , so its electronic configuration is 2 , 8, 5

Nitrogen is more electronegative than phosphorus.

Reason :-

From top to bottom down a group, electronegativity decreases.

Explanation :-

Number of shell increases down a group, so there is an increased distance b/w the valence electrons and nucleus, or a greater atomic radius.‎ ‎

       Since nitrogen has a smaller atomic radius than phosphorus, the attraction of its nucleus towards the incoming electron is more than phosphorus. So , because of smaller atomic size nitrogen accepts electrons more easily.

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