Thimerosal, which contains and organic compound of mercury, has mostly been phased out as a preservative for vaccines. Here's ...

Most meteorites that have reached Earth come from the asteroid belt between Mars and Jupiter. But we have 1,000 or so ...

A research team has synthesized three-dimensionally shaped molecules containing an internal twist and shown that they possess ...

Mercury is an odd little planet. The closest world to the Sun has some extreme surface structures, steep hills and cliffs, which have long been suspected to be the effect of the planet’s interior ...

Teaching the VSEPR (valence shell electron-pair repulsion) model can be a tedious process. Traditionally, Lewis structures are drawn and the number of “electron clouds” (groups) around the central ...

The individual absorption spectra of the two NH tautomers of 10-(4,6-dichloropyrimidin-5-yl)-5,15-dimesitylcorrole are assigned on the basis of the Gouterman four-orbital model and a quantum chemical ...