One hundred fifty years ago, Dmitri Mendeleev created the periodic table, a system for classifying atoms based on the properties of their nuclei. This week, a team of biologists studying the tree of ...
This is a story about gallium’s discovery and how it played a part in the acceptance of the then newly invented periodic table. Gallium was discovered by French chemist Paul-Emile Lecoq de Boisbaudran ...
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