# van Arkel–Ketelaar triangle

> English word · Noun

## Definitions
1. A triangle which can be used to organize chemical compounds by the degree of metallic, ionic, or covalent character of their bonds.

## Etymology
Named after Dutch chemists Anton Eduard van Arkel and J. A. A. Ketelaar.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/van-arkel-ketelaar-triangle