Bond polarity, driven by differences in electronegativity, explains why some molecules dissolve in water, why others don’t, and why substances have different boiling points. Polar bonds have unequal ...

This review outlines the research progress in the experiment-oriented discovery of new phases or unique properties under high pressure, including phase transition, abnormal compression, PL ...

Gallium, a metal that melts in the hand, has just surprised scientists. At the atomic level, gallium exhibits peculiarities.

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...