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The International Year of the Periodic Table

Marking the 150th anniversary of Dmitri Mendeleev’s discovery of the periodic system, 2019 is the International Year of the Periodic Table (IYPT). We look forward to sharing and celebrating the IYPT with all our readers this year.

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How it all started

Dmitri Mendeleev (1834–1907), a Russian chemist and inventor, is credited with the discovery of the periodic system of chemical elements in 1869.

A picture of Mendeleev with his 1869 periodic table

The father of the periodic table

2 January 2019By

Mike Sutton looks at how Mendeleev’s patience revealed periodicity in the elements

  • Chlorine, nitrogen and the legacies of Fritz Haber

  • Plutonium: The element factory

  • P is for phosphorus

  • Iridium and the demise of the dinosaurs

  • The discovery of radium – part two

  • The discovery of radium – part one

  • The end of phlogiston and the discovery of oxygen

  • The discovery of the noble gases

  • The discovery of graphene

A global conversation

The periodic table is a talking point for scientists around the world.

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Chemistry World is pleased to acknowledge the support of our headline sponsor JMP

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Chemistry World is pleased to acknowledge the support of Johnson Matthey

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  • The elements of future energy

  • The elements of business

Chemical storytelling

Listen to stories about all 118 elements on the periodic table.

Periodic table of the elements – 118 – Oganesson


15 February 2018By ,

Meet Yuri Oganessian, the elemental explorer forever immortalised on the periodic table

What do people think about chemistry?

Try our interactive presentation based on the Royal Society of Chemistry's public attitudes to chemistry survey.

The elements song

First recorded by Tom Lehrer in 1959 (when there were only 102 elements on the periodic table) it has since been covered, and updated, by many scientists and musicians over the years.