The periodic table captures a subtle pattern that runs ... a note hangs in the air that embodies something of the first. In tribute to this musical analogy, the chemists who first noticed the ...

The periodic table of elements is one of the most ... While several scientists before him had attempted to classify elements, Mendeleev was the first to organize them systematically based on ...

Incidentally this was the same year in which Dimitri Mendeleev published the first mature periodic system and began to predict the existence of new elements. But let me get back to berkelium. It was ...

The periodic table’s arrangement also allows scientists to discern trends in element properties, including electronegativity, ionization energy, and atomic radius. Many scientists worked on the ...

This year marks the 150th anniversary of the publication of Mendeleev’s Periodic Table of Chemical Elements in 1869. In celebration, the United Nations Educational, Scientific, and Cultural ...