Nature

Periodic Classification of Elements

To the three requirements of a modern Periodic Table, as stated by A. A. Clifford 1, must be added a fourth, namely, that it should be in as close accord as possible with chemical facts, and above all ...
Nature

The periodic table

The United Nations have proclaimed 2019 to be the International Year of the Periodic Table of Chemical Elements (IYPT 2019) to mark the 150th anniversary of the classification system that decorates ...
Physics World

An unelementary affair: 150 years of the periodic table

More than a thousand different versions of the periodic table have been created since Dmitri Mendeleev drew the first 150 years ago – but why is one version more familiar to us than practically every ...
The Conversation

Periodic table: scientists propose new way of ordering the elements

The periodic table of the elements, principally created by the Russian chemist, Dmitry Mendeleev (1834-1907), celebrated its 150th anniversary last year. It would be hard to overstate its importance ...
The Conversation

150 years later, 2019 is the International Year of the Periodic Table

The United Nations announced 2019 as the International Year of the Periodic Table of the Chemical Elements to highlight its first publication in 1869. The periodic table as we know it today was first ...
C&EN

The Periodic Table

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...