Physicists have filled in some longtime blank spaces on the periodic table, calculating electron affinities of the lanthanides, a series of 15 elements known as rare earths. Physicists at Michigan ...

The well-known representation of chemical elements is just one example of how objects can be arranged and classified The periodic table of elements that most chemistry books depict is only one special ...

All substances have properties. These describe how a subject looks and behaves. Substances have both physical and chemical properties. Developing the periodic table The periodic table was developed by ...