Bonding Triangle Visualizer

Van Arkel–Ketelaar triangle for IB Chemistry

Element A: Element B:

Enter two element symbols, then select Plot.

How does this work?

Δχ = |χ_a − χ_b|

χ_avg = (χ_a + χ_b) / 2

Difference determines the vertical position. Average determines the horizontal position.

The triangle represents a continuum of bonding character rather than strict bond-type boundaries.

Electronegativity reference

— = no electronegativity value shown in the IB reference.