This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionSodium-chloride-3D-ionic.png
English: The crystal structure of sodium chloride, NaCl, a typical ionic compound. The __ purple spheres represent sodium cations, Na+, and the __ green spheres represent chloride anions, Cl−.
I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Captions
Add a one-line explanation of what this file represents
Crystal structure of sodium chloride
Кристалічна структура хлориду натрію, NaCl, типової іонної сполуки. 🟪 Фіолетові кульки представляють катіони натрію Na+, а 🟩 зелені – хлор-аніони Cl−.