The scientists recorded the changes in angle of x-ray beams scattered by ammonia molecules. From that they could work out where the electrons keeping the atoms in the molecule together as it changes ...

For the first time, scientists visualized how electrons behave during a chemical reaction, which could help reduce unwanted ...

(1) THE perusal of a treatise on valency leaves an impression of incompleteness and uncertainty, of a mass of theories no single one of which can claim to correlate and interpret more than a portion ...

PROF. FRY bases his conception of valency on Sir J. J. Thomson's interpretation of the bond (without reference to the nature of chemical affinity or to the structure of the atom) as a unit Faraday ...