99 Percentile Qs Bank for JEE MainChemistryClassification of Elements and Periodicity in Properties
Fluorine is more electronegative than nitrogen. The best explanation is that
Options
- Athe valence electrons in F are on the average, a little farther to the nucleus than in N .
- Bthe charge on a F nucleus is + 9 , while that on N nucleus is + 7 .
- Cthe nitrogen has half filled valence shell electron configuration, ns 2   np 3 where as fluorine has part
- Dthe electronegativity decreases from top to bottom in each of the group as the effective nuclear charge remain
Correct answer
B. the charge on a F nucleus is + 9 , while that on N nucleus is + 7 .
Step-by-step solution
Generally electronegativity decreases down the group due to increase in atomic size and increases across the period due to decrease in atomic size and increase in nuclear charge.