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Nitrogen (atomic number 7) and phosphoru...

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?

Text Solution

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(a) Nitrogen (N) - At. No. = 7,
Electronic configuration = 2,5.
(b) Phosphorous (P) - At. No = 15,
Electronic configuration = 2, 8,5.
Thus, 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.
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  • An element belongs to group 15 and third period of the periodic table. Its electronic configuration will be

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