Predicted Interatomic Distances (IMAGE) Science China Press Caption Predicted interatomic distances for alkali chalcogenides and alkaline-earth halides with fluorite structure using formal models and EAS model, in comparison with the DFT results. Credit ©Science China Press Usage Restrictions Use with credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.