Periodic trend (EN)
Compare Pauling electronegativity between two elements.
Calculator
How to use
Trends
Teaching Pauling scale — exceptions exist.
Educational use only. Double-check values for labs, homework, and exams.
Compare Pauling electronegativity between two elements.
Teaching Pauling scale — exceptions exist.
Educational use only. Double-check values for labs, homework, and exams.
Model / formula
Pauling electronegativity + optional covalent radii
Result
Pauling χ: Na = 0.93, K = 0.82 → more electronegative: Na Covalent radius (pm): Na ≈ 166.0000, K ≈ 203.0000 Trends depend on period and group — this is a pairwise snapshot only.