Periodic Table of Chemical Elements

This year marks the 150th anniversary of the publication of Mendeleev’s Periodic Table of Chemical Elements in 1869.  Let's celebrate the International Year of the Periodic Table of Chemical Elements (IYPT 2019)

Countdown to IYPT!

Plan and Celebrate IYPT Events

See what others are doing around the world for IYPT. Tell us what you’re doing to be featured in 2019.

Educational Resources

Celebrate IYPT with these activites and resources for students and educators from Elementary School to Post Doc.

Periodic Table Gallery

Browse through a vast collection of different Periodic Tables, celebrating IYPT 2019

Featured Content

Video: What lies at the end of the periodic table?

Speaking of Chemistry explores the possible island of stability to learn how scientists working with elements at the end of the periodic table perform superheavy chemistry and what they hope to find out.

Reactions - Uncover the Chemistry in Everyday Life

Why is Carbon the Key to Life? (On Earth, Anyway)

One element is the backbone of all forms of life we’ve ever discovered on Earth: carbon. Number six on the periodic table is, to the best of our knowledge, impossible to live without. In this episode of Reactions, discover what makes carbon so exceptional, its nearly infinite capabilities, and potential intergalactic implications.

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ACS is celebrating the 150th anniversary of the Periodic System as created by Dmitri Mendeleev with a special Member-Get-A-Member limited edition Periodic Table of the Elements blanket.

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