The Periodic Table is a well-organized chart that contains all 118 known elements in the universe. These elements are the ...

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 ...

Today, with 118 elements, the periodic table is a cornerstone of science ... Before Sir Alexander Fleming discovered the world’s first broadly effective antibiotic – penicillin – even ...

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 ...

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.

Group 7 of the periodic table is something of an oddity. When the first periodic table was formulated by Mendeleev, it was the only group that contained just a single known element — manganese ...

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 ...

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 ...