Chemistry · Periodic Classification
Nitrogen (atomic number 7) and phosphorus (atomic number 15) belong to group 15 of the Periodic Table. Which of these will be more electronegative and why?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Nitrogen, because electronegativity decreases across a period, and it has a lower effective nuclear charge acting on the valence shell.
- 2Nitrogen, because its valence electrons are closer to the nucleus and more strongly attracted.✓
- 3Phosphorus, because its outer shell is farther from the nucleus, and it can donate electrons easily.
- 4Phosphorus, because it has more electrons, increasing its electronegativity.
Correct answer
Nitrogen, because its valence electrons are closer to the nucleus and more strongly attracted.
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