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 ...

This is the second part of a three-part series written by Carolyn Krause. Many of the elements were synthesized using an Oak Ridge reactor.

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.

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 ...

Today, 13.8 billion years after the Big Bang, stars have converted about 2 per cent of the universe’s hydrogen and helium into other elements ... guide to the periodic table “There ...

More than 75 years after its initial discovery, scientists have created an organometallic molecule containing the transuranium element berkelium. According to a new study, the electronic signature of ...

Heavy ligands such as polyoxometalates are opening a new frontier in actinide chemistry. Studying materials that are both ...

The Period Table of Endangered Elements presents elements facing supply restrictions ... creator of ptable.com — one of the first online periodic tables. We asked him to share his story about how he ...

Electronegativity, an essential characteristic of all elements in the periodic table, measures an atom's ability to attract electrons towards itself within a chemical bond. This vital theoretical ...

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 ...