Order early for pre-holiday delivery. Flinn will be closed December 24th, 2025,
through January 4th, 2026, reopening Monday, January 5th, 2026.
Orders received after 10:30 AM Central Time on Tuesday, December 23rd, 2025,
will ship after we return.
Build an easy-to-make device to help students visualize the abstract concept of electronegativity and its significance in polar and nonpolar covalent bonding with the Electronegativity: A Simple Demonstration Device—ChemTopic™ Lab Activity. Available as part of the Chemical Bonding—ChemTopic™ Labs digital collection. Click the Price link for digital collection pricing.