Periodic Table of Chemical Elements

2019 is the International Year of the Periodic Table of Chemical Elements (IYPT 2019)! Let's celebrate!

Countdown to IYPT!

This year marks the 150th anniversary of the publication of Mendeleev鈥檚 Periodic Table of Chemical Elements in 1869.

In celebration, the United Nations Educational, Scientific, and Cultural Organization (UNESCO) officially proclaimed 2019 as 鈥淭he United Nations International Year of The Periodic Table of Chemical Elements,鈥� or "."

Join us as we celebrate听throughout the year by showing how chemical elements are central to "linking cultural, economic and political aspects of the global society through a common language, whilst also celebrating the genesis and development of the periodic table over the last 150 years."


Periodic Table Merchandise


How to Get Involved

Get in your element for IYPT with these fun and engaging activities!

ACS Periodic Playoff

The chemical elements face off. Vote and campaign for your favorites today!

#myElement

Campaign for your favorite element on social media using #myElement, and tell us your Element Story for a chance to be featured on our main page听. Bonus: Add IYPT to your profile with Twitter and Facebook headers!
Download:听Twitter IYPT header听触听Facebook IYPT cover

Join us for Tuesday Trivia

Test your periodic table knowledge and chemistry skills every Tuesday 听on Instagram and Twitter for #TriviaTuesday #IYPT2019

Share and Explore Community Events

See what other people are doing around the world.听听to be featured here.

Plan Outreach Events

Host hands-on science activities for the public during听National Chemistry Week,听Chemists Celebrate Earth Week,听or anytime during the year.听

Plan Technical Programming

Talk about the ongoing evolution of the periodic table and the importance of various elements with your ACS Student Chapter, Local Section, International Chemical Sciences Chapter, or other group.

Host your Own Contest

Use听听as prizes for creative uses of the periodic table, poem contests, art contests, and more.

Feature of the Week

Take a look at the all the photo entries in the "I Spy a Periodic Table" contest, and vote for your favorite entry of the C&EN "Best of" in each category: cupcakes, fashion, historical, housewares, kids and pets, school and office, tiny tables, and other. The readers' choice winner will be announced March 4.听

Want to see your project or article featured here? Email iypt@acs.org!

Latest News

Educational Resources

听 听

Gallery of Periodic Tables

International Union of Pure and Applied Chemistry

Google

Royal 中国365bet中文官网 of Chemistry (RSC)

Periodic Table Trends on periodictiy.io

History of the Periodic Table on Tableau Public

L'脡l茅mentarium (en Fran莽ais)

The Periodic Graphics of Elements

Elemental Haiku on Science Magazine

Fast Facts, By The Numbers

118

Discovered Elements of the Periodic Table

15

Elements Named After 16 Scientists,
Including Mendeleev

2

Elements Named After Women:
Lise Meitner (Meitnerium) and Marie Curie (Curium)

Henry Hill

Did You Know?

In 1977 Henry A. Hill was the first African American president of the American Chemical 中国365bet中文官网 and did extensive work with polymers. He was also dedicated to improving employer-employee relationships and is noted for his dedication to professionalism. An ACS award is named in his honor.