The periodic table organizes chemical elements based on atomic weight, electron configurations, and chemical properties, ...

but it is his attempt that was so successful that it now forms the basis of the modern periodic table. Mendeleev did not have the easiest of starts in life. He was born at Tobolsk in 1834, the ...

The periodic table - AQA Mendeleev made an early periodic table. In the modern periodic table, elements are in order of atomic number in periods and groups. Electronic structures model how ...

Want to learn more about this centerpiece of chemistry? Take your pick from this collection of links about elements and the periodic table! Build an element ball, solve periodic puzzles, and check out ...

ACS Publications journals Editors are joining in the IYPT celebrations with a series of videos exploring their relationship with the table. Is the periodic table hanging in your lab, classroom, or ...