The periodic table of elements (often known simply as the periodic table) has been helping scientists with their work for a little over 150 years. The handy visual reference guide organizes known ...

Many scientists worked on the problem of organizing the elements, but Dmitri Mendeleev published his first version of the periodic table in 1869, and is most often credited as its inventor. Since then ...

The Periodic Table, first compiled by Russian chemist Dmitri Mendeleyev, is organized by the number of protons in the nucleus of each element's atom, known as the atomic number. The elements are ...

The periodic table can be read across from left to ... Melting points are a physical property of an element. The first Group 1 element, lithium, has the highest melting point at 180°C.

Scientists have discovered 'berkelocene,' the first organometallic molecule to be characterized containing the heavy element berkelium. The breakthrough disrupts long-held theories about the chemistry ...

1. Periodic Table as Arranged by Mendelejeff attention to the fact that “the eighth element, starting from a given one, is a kind of repetition of the first, like the eighth note of an octave in ...

Researchers have synthesised a triple bond between carbon and boron for the first time. This discovery could help chemists better understand chemical bonds and inspire other researchers to synthesise ...

The first recorded attempt at creating a system to organise ... Thanks to Moseley’s work it now became possible to place elements in the periodic table according to their atomic number rather than ...

That’s why this periodic table clock really caught our eye. [gocivici]’s idea is a simple one: light up three different elements with three different colors for hours, minutes, and seconds ...